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1.
PLoS Negl Trop Dis ; 17(10): e0011660, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37792705

ABSTRACT

BACKGROUND: Malaria and dengue are common mosquito-borne diseases around the world that cause high mortality and morbidity. The number of cases of both diseases is currently rising in Sudan and is associated with climate and environmental changes. Limited information is available on malaria and dengue co-infections and the severity of the two diseases among febrile patients in eastern Sudan. Thus, this study aimed to estimate the prevalence of malaria and dengue co-infections among febrile patients in Kassala, eastern Sudan. METHODOLOGY/PRINCIPAL FINDINGS: A cross-sectional hospital-based study was conducted among febrile patients from September to December 2019. A total of 395 patients were enrolled after consenting to participate in the study. Demographic and clinical data were collected by structured questionnaires. Blood samples were provided to diagnose malaria infections using microscopy and polymerase chain reaction (PCR) and for serology diagnosis of dengue using enzyme-linked immune sorbent assay (ELISA) IgM. Multiple logistic regression analysis was used to assess the association between demographic information, clinical symptoms and malaria and dengue co-infections. Out of 395 febrile patients examined 158 (40%) were malaria positive and 67 (17%) were dengue positive. The prevalence of malaria and dengue co-infections was 6.6% (26/395). Results of multiple logistic regression indicated that elder patients (41-60 years) had less rate of co-infections (OR = 0.3, 95% CI 0.11 to 0.81, p-value = 0.018), while patients of co-infections were eight times more likely to have fatigue, and two times more likely to suffer from joint and muscle pain and this difference was statistically significant with (OR = 8.3, 95% CI: 1.89 to 37.22, p-value = 0.005) and (OR = 2.4, 95% CI 1.10 to 5.39, p-value = 0.027), respectively. CONCLUSIONS/SIGNIFICANCE: This study confirmed the existence of malaria and dengue co-infections among febrile patients in Kassala, eastern Sudan for the first time. The severity of clinical symptoms of patients with malaria and dengue co-infections was observed, and the co-infections were found prevalent among young people.


Subject(s)
Coinfection , Dengue , Malaria , Animals , Humans , Adolescent , Aged , Dengue/complications , Dengue/epidemiology , Dengue/diagnosis , Prevalence , Sudan/epidemiology , Cross-Sectional Studies , Seasons , Coinfection/epidemiology , Coinfection/complications , Malaria/complications , Malaria/epidemiology , Fever/etiology
2.
Arch Gynecol Obstet ; 305(4): 855-858, 2022 04.
Article in English | MEDLINE | ID: mdl-34448947

ABSTRACT

BACKGROUND: Arboviruses (dengue, Zika, and chikungunya) have recently emerged as an important public health issue and can lead to adverse obstetrics outcomes. The current study was conducted to assess maternal and perinatal outcomes following chikungunya fever/infection and to compare adverse pregnancy outcomes with data from the community collected in a previous study. METHODS: This study was performed during a chikungunya infection epidemic in Kassala, Sudan by recruiting all pregnant women with a confirmed chikungunya fever diagnosis by using antibodies/detection viral RNA using reverse transcriptase-polymerase chain reaction. RESULTS: Ninety-three pregnant women with confirmed chikungunya infection were enrolled. Their mean (standard deviation) age and parity were 31.6 (3.4) years and 3.5 (1.4), respectively. Of the 93 women, 58 (62.4%) delivered a live infant at term and 18 (19.4%), 13 (13.9%), and 4 (4.3%) women experienced miscarriage, preterm birth, and stillbirth, respectively. In the logistic regression model, severe thrombocytopenia (platelets < 50,000 cells/mm3 (odds ratio [OR] = 5.1; confidence interval [CI] 1.8-14; P = 0.001) and leukopenia (OR = 4.5; CI 2.2-8.8; P < 0.001) were predictors for poor obstetric outcomes in pregnant women with chikungunya fever. The rates of miscarriage (18/93 [19.3%] vs. 1/71 [1.4%], P < 0.001) and preterm birth (13/93 [13.9%] vs. 2/71 [2.8%], P = 0.003) were significantly higher in the current study compared with the rate in the community. CONCLUSION: Chikungunya infections during pregnancy were associated with miscarriage and preterm birth. Women with severe thrombocytopenia and leukopenia were at higher risk of poor obstetric outcomes. Women with severe thrombocytopenia and leukopenia were at higher risk of poor obstetric outcomes.


Subject(s)
Chikungunya Fever , Premature Birth , Zika Virus Infection , Zika Virus , Chikungunya Fever/complications , Chikungunya Fever/epidemiology , Disease Outbreaks , Female , Humans , Infant , Infant, Newborn , Pregnancy , Pregnancy Outcome , Premature Birth/epidemiology , Sudan/epidemiology
3.
PLoS Negl Trop Dis ; 15(4): e0009387, 2021 04.
Article in English | MEDLINE | ID: mdl-33930028

ABSTRACT

BACKGROUND: The public health impact of Chikungunya virus (CHIKV) is often underestimated. Usually considered a mild condition of short duration, recent outbreaks have reported greater incidence of severe illness, fatality, and longer-term disability. In 2018/19, Eastern Sudan experienced the largest epidemic of CHIKV in Africa to date, affecting an estimated 487,600 people. Known locally as Kankasha, this study examines clinical characteristics, risk factors, and phylogenetics of the epidemic in Kassala City. METHODOLOGY/PRINCIPAL FINDINGS: A prospective cohort of 102 adults and 40 children presenting with chikungunya-like illness were enrolled at Kassala Teaching Hospital in October 2018. Clinical information, socio-demographic data, and sera samples were analysed to confirm diagnosis, characterise illness, and identify viral strain. CHIKV infection was confirmed by real-time reverse transcription-PCR in 84.5% (120/142) of participants. Nine (7.5%) CHIKV-positive participants had concurrent Dengue virus (DENV) infection; 34/118 participants (28.8%) had a positive Rapid Diagnostic Test for Plasmodium falciparum; six (5.0%) had haemorrhagic symptoms including two children with life-threatening bleeding. One CHIKV-positive participant died with acute renal injury. Age was not associated with severity of illness although CHIKV-infected participants were younger (p = 0.003). Two to four months post-illness, 63% of adults available for follow-up (30) were still experiencing arthralgia in one or more joints, and 11% remained moderately disabled on Rapid3 assessment. Phylogenetic analysis showed all CHIKV sequences from this study belonged to a single clade within the Indian Ocean Lineage (IOL) of the East/Central/South African (ECSA) genotype. History of contact with an infected person was the only factor associated with infection (p = 0.01), and likely related to being in the same vector environment. CONCLUSIONS/SIGNIFICANCE: Vulnerability to CHIKV remains in Kassala and elsewhere in Sudan due to widespread Aedes aegypti presence and mosquito-fostering household water storage methods. This study highlights the importance of increasing awareness of the severity and impact of CHIKV outbreaks, and the need for urgent actions to reduce transmission risk in households.


Subject(s)
Chikungunya Fever/epidemiology , Chikungunya Fever/virology , Chikungunya virus/genetics , Disease Outbreaks , Adolescent , Adult , Aedes/virology , Animals , Chikungunya Fever/mortality , Chikungunya virus/isolation & purification , Child , Child, Preschool , Epidemics , Female , Humans , Infant , Male , Middle Aged , Molecular Epidemiology , Mosquito Vectors/virology , Phylogeny , Prospective Studies , Sudan/epidemiology , Young Adult
4.
Virol J ; 17(1): 118, 2020 07 30.
Article in English | MEDLINE | ID: mdl-32731875

ABSTRACT

BACKGROUND: Dengue fever (DF) is an arthropod-borne disease caused by dengue virus (DENV). DENV is a member of the genus Flavivirus in the family Flaviviridae. Recently, DENV has been reported as an important emerging infectious viral pathogen in Sudan. Multiple outbreaks and sporadic cases of DF have been frequently reported in the eastern region of Sudan. The present study was conducted to confirm DENV outbreak in Kassala State, eastern Sudan, 2019, and to provide some information on the molecular characterization of the DENV isolate associated with the disease outbreak. METHODS: A hundred serum samples were collected during the outbreak from residents of Kassala State, Sudan, 2019. ELISA was used to detect DENV non structural protein NS1 (DENV-NS1) in acute phase sera sampled during the disease outbreak. RT-PCR assays were used to amplify a fragment of the capsid/pre-membrane region (CprM) of the viral polyprotein gene. The PCR products of the amplified CprM region of the viral polyprotein gene were purified and partial sequences were generated and used to confirm the specificity of DENV sequences and to identify the virus serotype. Phylogenetic tree was constructed to determine the genotype of DENV associated with the outbreak. RESULTS: Using DENV-NS1 ELISA assay, DENV infection was confirmed in 23% sampled sera. The detection of DENV RNA was made possible using group-specific RT-PCR assay. The virus was serotyped as DENV serotype 3 (DENV-3) using DENV serotype-specific RT-PCR assay. Phylogenetic analysis of the partial CprM sequences of the viral polyprotein gene indicates that the virus belonged to genotype III of DENV-3. CONCLUSION: The scientific data presented in this investigation confirmed that genotype III of DENV-3 was associated with the disease outbreak in eastern Sudan, 2019. The study represents the first report on molecular characterization of DENV-3 in Sudan.


Subject(s)
Dengue Virus/genetics , Dengue/virology , Disease Outbreaks , Phylogeny , Dengue/blood , Dengue/epidemiology , Dengue Virus/classification , Genotype , Humans , Sequence Analysis, DNA , Serogroup , Sudan/epidemiology
5.
BMC Public Health ; 20(1): 530, 2020 Apr 19.
Article in English | MEDLINE | ID: mdl-32306941

ABSTRACT

BACKGROUND: Acute arboviral infections are distributed worldwide including Sudan, and dengue fever (DENV) is not an exception. The virus activity has recently been frequently reported in Kassala State, eastern Sudan. However, an appropriate epidemiological study would be necessary to provide accurate and precise estimates of the magnitude of recent DENV transmission in this area of endemicity. METHODS: In the present investigation, a cross sectional study was conducted to advance beyond the current knowledge of the epidemiology of the disease in Kassala State. The prevalence of the disease was estimated and associated risk factors were determined. Sampled sera were collected and screened for recent dengue transmissionas as determined by DENV-IgM enzyme-linked immunosorbent assay (ELISA). The collection of data for risk assessment was supported by a well designed structured questionnaire. RESULTS: The prevalence of recent DENV infection was estimated to be (11.42%). Potential risk factors to DENV seropsitivity include, age (OR = 3.24, CI = 1.81-5.77,p-value = 0.001); low income (OR = 3.75, CI = 1.57-8.93, p-value = 0.027); mosquito control (OR = 4.18, CI = 2.33-7.51, p-value = 0.004); and localities. CONCLUSION: The present study showed a high rate of circulating DENV IgM antibodies among the participants of the study (11.42%), suggesting recent transmission of DENV in Kassala State, eastern Sudan. The frequent occurrence of DENV infections necessitates the need for improved surveillance programs and prevention measures to combat this important arboviral disease in Sudan.


Subject(s)
Antibodies, Viral/blood , Dengue Virus/immunology , Dengue/epidemiology , Endemic Diseases/statistics & numerical data , Immunoglobulin M/blood , Adolescent , Adult , Cross-Sectional Studies , Dengue/immunology , Dengue/transmission , Enzyme-Linked Immunosorbent Assay , Female , Humans , Immunoglobulin M/immunology , Male , Middle Aged , Mosquito Control/statistics & numerical data , Poverty/statistics & numerical data , Prevalence , Risk Assessment , Risk Factors , Seroepidemiologic Studies , Sudan/epidemiology , Young Adult
6.
Trans R Soc Trop Med Hyg ; 113(11): 701-705, 2019 11 01.
Article in English | MEDLINE | ID: mdl-31334809

ABSTRACT

BACKGROUND: Accurate diagnosis of malaria infection is essential for successful control and management of the disease. Both microscopy and rapid diagnostic tests (RDTs) are recommended for malaria diagnosis, however, RDTs are more commonly used. The aim of the current study was to assess the performance of microscopy and RDTs in the diagnosis of Plasmodium falciparum infection using a nested polymerase chain reaction (PCR) assay as the gold standard. METHODS: A cross-sectional study was carried out in Kassala Hospital, eastern Sudan. A total of 341 febrile participants of all ages were recruited. Blood specimens were collected and malaria testing was performed using an RDT (SD Bioline Malaria Ag Pf), microscopy and nested PCR. The sensitivity, specificity, positive and negative predictive values (PPV and NPV, respectively) of microscopy and the RDT were investigated. RESULTS: The prevalence of P. falciparum malaria infections in this study was 22.9%, 24.3% and 26.7% by PCR, microscopy and RDT, respectively. Compared with microscopy, the RDT had slightly higher sensitivity (80.7% vs 74.3%; p=0.442), equivalent specificity (89.3% vs 90.4%), a similar PPV (69.2% vs 69.8%) and a higher NPV (94.0% vs 92.2%). CONCLUSIONS: The diagnostic performance of the RDT was better than that of microscopy in the diagnosis of P. falciparum malaria when nested PCR was used as the gold standard.


Subject(s)
Biological Assay/standards , Diagnostic Tests, Routine/standards , Malaria, Falciparum/diagnosis , Malaria, Falciparum/genetics , Microscopy/standards , Plasmodium falciparum/genetics , Polymerase Chain Reaction/standards , Adolescent , Adult , Biological Assay/statistics & numerical data , Child , Cross-Sectional Studies , Diagnostic Tests, Routine/statistics & numerical data , Early Diagnosis , Female , Humans , Malaria, Falciparum/epidemiology , Male , Microscopy/statistics & numerical data , Middle Aged , Plasmodium falciparum/isolation & purification , Polymerase Chain Reaction/statistics & numerical data , Prevalence , Reproducibility of Results , Sudan/epidemiology , Young Adult
7.
Jpn J Infect Dis ; 72(1): 58-61, 2019 Jan 23.
Article in English | MEDLINE | ID: mdl-30270247

ABSTRACT

The tropical environment of Sudan promotes the spread of mosquito-transmitted diseases such as dengue virus (DENV) infection. The current understanding of the geographical distribution of DENV serotypes and genotypes in Sudan is limited. In this study, molecular techniques (reverse transcriptase [RT]-PCR and sequencing) followed by phylogenetic analysis were used to characterize DENV isolated from the blood samples of suspected dengue patients admitted to Kassala Hospital, Kassala state, Sudan, in 2016 and 2017. We identified DENV infection in 4 patients by RT-PCR. Phylogenetic analysis revealed that the isolated virus sequences belong to the Cosmopolitan genotype of DENV serotype 2. This is the first study to confirm the presence of DENV serotype 2 in Kassala state, Sudan. Our results indicate the need for wider investigations of the DENV serotype composition and studies to evaluate their contribution to ongoing transmission.


Subject(s)
Dengue Virus/classification , Dengue Virus/isolation & purification , Dengue/diagnosis , Molecular Epidemiology , Dengue/epidemiology , Dengue/virology , Dengue Virus/genetics , Genotype , Humans , Phylogeny , RNA, Viral/blood , RNA, Viral/genetics , Reverse Transcriptase Polymerase Chain Reaction , Sequence Analysis, DNA , Serogroup , Sudan/epidemiology
8.
J Infect Dev Ctries ; 12(4): 273-278, 2018 Apr 30.
Article in English | MEDLINE | ID: mdl-31851637

ABSTRACT

INTRODUCTION: Haemozoin -containing leucocytes (HCL) can be used to predict severe malaria. METHODOLOGY: A case -control study was conducted in Singa, Sudan, to investigate the haematological values and HCL in children with severe Plasmodium falciparum malaria. The cases were children with severe P. falciparum malaria (67). The two groups of controls were patients with uncomplicated P. falciparum malaria (63) and healthy children (50). RESULTS: The mean (±SD) age was 5.5 (±3.8) years. In comparison with children with uncomplicated P. falciparum malaria, children with severe P. falciparum malaria had significantly lower haemoglobin and platelet counts, and significantly higher lymphocyte counts, red cell distribution width (RDW), and platelet distribution width (PDW). The rate of haemozoin -containing monocytes (percentage of children positive for this parameter in each group) was 91.0%, 84.6% and 50.0%, P<0.001 in children with severe P. falciparum, uncomplicated P. falciparum malaria and negative controls, respectively. Receiver Operating Characteristic (ROC) curves for blood parameters and HCL were plotted and the areas under the curve (AUC) were calculated for the prediction of severe P. falciparum malaria infection. The ROC curve analysis, showed a fair predictability of malaria for haemoglobin (AUC = 0.74, sensitivity = 76.0% and specificity  = 60.3%, cut-off  = 9.7g/dl), lymphocytes (AUC = 0.71, sensitivity = 71.3% and specificity  = 62.2%, cut-off  = 1.95×103/mm3), PDW (AUC = 0.69, sensitivity = 80.1% and specificity = 66.3%, cut-off  = 15.34 %) and haemozoin in the monocytes (AUC = 0.68, sensitivity = 68.2% and specificity = 65.2%, cut-off =5.5 %). CONCLUSION: RDW, PDW and HCL could be used to predict severe malaria in this setting.

10.
BMC Public Health ; 16(1): 1234, 2016 12 07.
Article in English | MEDLINE | ID: mdl-27927185

ABSTRACT

BACKGROUND: Since 1900s, visceral leishmaniasis (VL) has been among the most important health problems in Sudan, particularly in the endemic areas such as eastern and central regions. METHODS: This was a cross sectional, hospital-based study conducted from 1st January 2015 to 31st December 2015 to investigate the epidemiological factors of VL in Gadarif hospital, eastern Sudan. RESULTS: During the study period there were 47 identified children with VL among 145 suspected cases. The most common clinical presentations were fever (47, 100%), pallor (47, 100%), weight loss (40, 85.1%), splenomegaly (37, 78.7%), lymphadenopathy (33, 70.2%), vomiting (32, 68%) cough (28, 59%), loss of appetite (22, 46.8%), diarrhoea (17, 36.1%) and jaundice (5, 10.6%). With regard to the outcome after short term follow up 37 patients (78.8%) improved without complications, while 3 (6.4%, 2 (4.3%), 2 (4.3%), 1 (2.1%), 1 (2.1%) and 1 (2.1%) developed pneumonia, otitis media, septicaemia, urinary tract infection, parasitic infestation and PKDL respectively. Lower mean of haemoglobin level was observed among the VL cases in comparison with the suspected cases (in whom VL was excluded) haemoglobin level {8.9 (3.1) Vs 11 (6.3), P = 0.021}. Again more proportion of anaemic (47 (100%) Vs 14 (14.2%), P = 0.000) and severely anaemic (23 (48.9%) Vs 2 (2%), P = 0.006) patients was detected among the infected children. Using logistic regression analyses there was significant association between rural residence (CI = 1.5-24, OR = 19.1, P = 0.023), male gender (CI = 6.6-18.7, OR = 6.4, P = 0.001) and VL among children. CONCLUSIONS: While there is an advance in prevention and management of visceral leishmaniasis our results indicate that VL is still a public health problem with its severe complications among children in eastern Sudan.


Subject(s)
Endemic Diseases/statistics & numerical data , Hospitalization/statistics & numerical data , Leishmaniasis, Visceral/epidemiology , Age Distribution , Anemia/parasitology , Child , Child, Preschool , Cross-Sectional Studies , Female , Hospitals , Humans , Infant , Infant, Newborn , Leishmaniasis, Visceral/complications , Logistic Models , Male , Residence Characteristics , Rural Population/statistics & numerical data , Sex Distribution , Sudan/epidemiology
11.
Int J Health Sci (Qassim) ; 10(4): 522-531, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27833517

ABSTRACT

OBJECTIVES: The aim of this study was to assess the clinical utility of esophageal manometry among Sudanese patients presenting to the National Centre for Gastrointestinal and Liver Diseases, Ibn Sina Hospital, Khartoum, Sudan. METHODOLOGY: Consecutive patients referred for esophageal manometry at the aforementioned center from July 2008 through January 2011 were included in the study. Manometric studies were done after stopping medicines with a known effect on esophageal motility and an overnight fast. Immediately before the manometric study, the patients' history and clinical examination were recorded using a structured questionnaire. RESULTS: The major referral reason was the investigation of dysphagia in 78 patients (60.5%), followed by the evaluation of Gastroesophageal reflux disease (GERD) in 39 patients (30%), while 11 patients (9%) were referred because of non-cardiac chest pain. The manometric diagnosis in the 78 patients with dysphagia, where 51(65.4%) had achalasia, 13(16.7%) had nonspecific motility disorder, the remaining percentage was formed by GERD diffuse esophageal spasm, connective tissue disease, Nutcracker esophagus, hypertensive lower esophageal sphincter, patient manometry suggestive of myasthenia gravis, and normal manometry. CONCLUSION: GERD and Achalasia were the commonest conditions among the study group. Patients presenting with achalasia manifest the same clinical symptoms as published in the literature. The leading abnormality predisposing to GERD was hypotensive lower esophageal sphincter and weak esophageal clearance function. GERD was main cause of non-cardiac chest pain in the study population. However, it is difficult to generalize the findings of this study for the whole country since it was a single center study.

12.
J Infect Dev Ctries ; 8(5): 611-5, 2014 May 14.
Article in English | MEDLINE | ID: mdl-24820465

ABSTRACT

INTRODUCTION: There is a need to investigate the treatment (artesunate and quinine) of severe malaria, as this will influence the outcome of morbidity and the mortality of the disease. METHODOLOGY: An open randomized trial conducted at Kassala, Sudan. Patients with severe P. falciparum malaria were randomly assigned to either intravenous artesunate at 2.4 mg/kg at 0, 12, and 24 hours, then daily, or intravenous quinine at a 20 mg/kg loading dose, then 10 mg/kg three times a day. Fever and parasite clearance and coma resolution time were compared between the two groups . RESULTS: The two groups (47 in each group) were well matched in the clinical and biochemical characteristics. Hypotension, convulsions, severe anemia, hypoglycemia, cerebral malaria, and jaundice were the predominant manifestations of severe malaria. The mean (SD) of the fever clearance (10.8 [5.5] vs. 14.0 [8.1] hours, p = 0.028) and the parasite clearance time (16.5 [6.4] vs. 21.7 [11.3] hours, p = 0.007) were significantly shorter in the artesunate-treated patients. In comatose patients, there was no difference between the two groups in coma resolution time. Following quinine infusion, ten patients developed tinnitus (p < 0.001), and four had hypoglycemia (p = 0.033). Tinnitus and hypoglycemia were not detected in the artesunate group. One patient in the artesunate group died. CONCLUSIONS: Artesunate is more effective than quinine, in term of parasite and fever clearance time, in the treatment of P. falciparum malaria in eastern Sudan. The study found no difference between artesunate and quinine in coma resolution time.


Subject(s)
Antimalarials/therapeutic use , Artemisinins/therapeutic use , Malaria, Falciparum/drug therapy , Quinine/therapeutic use , Administration, Intravenous , Adolescent , Adult , Anemia/etiology , Artesunate , Child , Child, Preschool , Coma/etiology , Female , Hospitals , Humans , Infant , Infant, Newborn , Malaria, Falciparum/complications , Male , Middle Aged , Parasitemia/drug therapy , Sudan , Treatment Outcome , Young Adult
14.
Malar J ; 12: 255, 2013 Jul 19.
Article in English | MEDLINE | ID: mdl-23870667

ABSTRACT

BACKGROUND: Artesunate/sulphadoxine-pyrimethamine (AS/SP) has been the first-line treatment for falciparum malaria in Sudan since 2004. The impact of this combination on anti-malarial resistance-associated molecular markers has not been investigated. In this study, an evaluation of the efficacy and prevalence of drug resistance alleles (pfcrt, pfmdr1, pfdhfr and pfdhps) eight years after the adoption of AS/SP in eastern Sudan is reported. METHODS: A 28-day follow-up efficacy trial of AS/SP was conducted in eastern Sudan during the 2012 transmission season. Blood smears were collected from patients on days 0, 1, 2, 3, 7, 14, 21 and 28. Blood spots on filter paper were obtained pre-treatment and on the day the patient was parasite positive by microscopy. Genotyping of alleles was performed by qPCR (pfcrt 72-76 and pfmdr1 copy number) and direct sequencing of pfmdr1, pfdhfr and pfdhps. RESULTS: Sixty-three patients out of 68 (93%) completed the 28-day follow-up, adequate clinical, and parasitological response occurred in 90.5% and 85.3% of the patients in the per-protocol and intent-to-treat analyses, respectively. PCR corrected per-protocol efficacy was 93.7%. The enrolment prevalence of pfcrt-CVMNK was 30.2% and pfmdr1-N86 was 40.3%. The pfmdr1 haplotype NFD occurred in 32.8% of pre-treatment samples and was significantly higher than previous reports (Fisher's exact p = 0.0001). The pfdhfr-51I/108N combination occurred in all sequenced isolates and 59R was observed in a single individual. pfdhps substitutions 436A, 437G, 540E, 581G and 613S were observed at 7.8, 77.3, 76.9%, 33.8% and 0.0%, respectively. Treatment failures were associated with the pfdhps haplotype SGEGA at these five codons (OR 7.3; 95% CI 0.65 - 368; p = 0.048). CONCLUSION: The decrease of CQR associated genotypes reflects the formal policy of complete removal of CQ in Sudan. However, the frequency of markers associated with SP failure is increasing in this study area and may be contributing to the treatment efficacy falling below 90%. Further monitoring of AS/SP efficacy and of post-treatment selection of pfdhfr and pfdhps alleles in vivo is required to inform future treatment guidelines.


Subject(s)
Artemisinins/therapeutic use , Drug Resistance , Malaria, Falciparum/drug therapy , Plasmodium falciparum/drug effects , Plasmodium falciparum/genetics , Protozoan Proteins/genetics , Pyrimethamine/therapeutic use , Sulfadoxine/therapeutic use , Adolescent , Adult , Aged , Artemisinins/pharmacology , Child , Child, Preschool , DNA, Protozoan/chemistry , DNA, Protozoan/genetics , Female , Gene Dosage , Gene Frequency , Humans , Malaria, Falciparum/parasitology , Male , Middle Aged , Mutant Proteins/genetics , Plasmodium falciparum/enzymology , Plasmodium falciparum/isolation & purification , Prevalence , Pyrimethamine/pharmacology , Real-Time Polymerase Chain Reaction , Sequence Analysis, DNA , Sudan , Sulfadoxine/pharmacology , Young Adult
15.
Malar J ; 12: 148, 2013 May 01.
Article in English | MEDLINE | ID: mdl-23634728

ABSTRACT

BACKGROUND: There have been few published reports on severe Plasmodium falciparum and Plasmodium vivax malaria among adults in Africa. METHODS: Clinical pattern/manifestations of severe P. falciparum and P. vivax (according to World Health Organization 2000 criteria) were described in adult patients admitted to Kassala Hospital, eastern Sudan. RESULTS: A total of 139 adult patients (80 males, 57.6%) with a mean (SD) age of 37.2 (1.5) years presented with severe P. falciparum (113, 81.3%) or P. vivax (26, 18.7%) malaria. Manifestations among the 139 patients included hypotension (38, 27.3%), cerebral malaria (23, 16.5%), repeated convulsions (18, 13.0%), hypoglycaemia (15, 10.8%), hyperparasitaemia (14, 10.1%), jaundice (14, 10.1%), severe anaemia (10, 7.2%), bleeding (six, 4.3%), renal impairment (one, 0.7%) and more than one criteria (27, 19.4%). While the geometric mean of the parasite count was significantly higher in patients with severe P. vivax than with severe P. falciparum malaria (5,934.2 vs 13,906.6 asexual stage parasitaemia per µL, p = 0.013), the different disease manifestations were not significantly different between patients with P. falciparum or P. vivax malaria. Three patients (2.2%) died due to severe P. falciparum malaria. One had cerebral malaria, the second had renal impairment, jaundice and hypoglycaemia, and the third had repeated convulsions and hypotension. CONCLUSIONS: Severe malaria due to P. falciparum and P. vivax malaria is an existing entity among adults in eastern Sudan. Patients with severe P. falciparum and P. vivax develop similar disease manifestations.


Subject(s)
Malaria, Falciparum/diagnosis , Malaria, Falciparum/pathology , Malaria, Vivax/diagnosis , Malaria, Vivax/pathology , Adult , Anemia/pathology , Female , Hospitals , Humans , Malaria, Cerebral/pathology , Malaria, Falciparum/complications , Malaria, Vivax/complications , Male , Parasite Load , Parasitemia/pathology , Plasmodium falciparum/isolation & purification , Plasmodium vivax/isolation & purification , Severity of Illness Index , Sudan
16.
Malar J ; 11: 404, 2012 Dec 05.
Article in English | MEDLINE | ID: mdl-23217037

ABSTRACT

BACKGROUND: Artemisinin-based combination therapy (ACT) is the treatment of choice for uncomplicated Plasmodium falciparum malaria in most areas of the world, where malaria is endemic, including Sudan. However, few published data are available on the use of ACT for treatment of P. vivax malaria. METHODS: This study was conducted at a health centre in Kassala, eastern Sudan, from October to December 2011. Patients with uncomplicated P. vivax malaria received artemether-lumefantrine (AL) tablets (containing 20mg artemether and 120 mg lumefantrine) and were monitored for 28 days. RESULTS: Out of the 43 cases enrolled in this study, 38 completed the 28-day follow-up. Their mean age was 25.1 years (SD: 1.5). On day 3 following AL treatment, all of the patients were afebrile and aparasitaemic. By day 28, all 38 patients exhibited adequate clinical and parasitological responses to AL treatment. The cure rate was 100% and 88.4% for the per protocol analysis andfor the intention to treat analysis, respectively. Mild adverse effects (nausea, vomiting, abdominal pain, dizziness and/or rash) that resolved spontaneously were observed in four (10.5%) of the patients. CONCLUSION: AL combination therapy was fully effective for treatment of P. vivax malaria in the study in eastern Sudan. TRIAL REGISTRATION: Trial. Gov: NCT01625871.


Subject(s)
Antimalarials/administration & dosage , Artemisinins/administration & dosage , Ethanolamines/administration & dosage , Fluorenes/administration & dosage , Malaria, Vivax/drug therapy , Plasmodium vivax/drug effects , Adolescent , Adult , Artemether, Lumefantrine Drug Combination , Child , Child, Preschool , Drug Combinations , Female , Humans , Male , Middle Aged , Sudan , Treatment Outcome , Young Adult
17.
Int J Gynaecol Obstet ; 118(3): 236-8, 2012 Sep.
Article in English | MEDLINE | ID: mdl-22727053

ABSTRACT

OBJECTIVE: To describe the epidemiology and clinical presentation of female genital tuberculosis (FGTB) among women in eastern Sudan. METHODS: A cross-sectional survey was conducted at Kassala Maternity Hospital, Sudan, from January 1 to December 31, 2010. RESULTS: Of the 2778 women presenting with various gynecologic symptoms, 44 suspected cases of FGTB were identified. Granulomatous tissue reactions were observed in 25 of the suspected FGTB cases, yielding an incidence of 0.9%. The majority (20/25; 80%) of these patients presented with chronic pelvic and lower abdominal pain; however, 68.0% (17/25) presented with pelvic mass, cyst and/or abscess; 48.0% (12/25) had dyspareunia; 40.0% (10/25) were infertile; 28% (7/25) had menstrual dysfunction; 20.0% (5/25) had dysmenorrhea; and 4.0% (1/25) experienced postmenopausal bleeding. Body mass index, residence, and educational level were significantly different between women diagnosed with FGTB and those where FGTB was excluded (P values=0.02, 0.03, and 0.01, respectively). However, no significant differences were found in age and Bacillus Calmette-Guérin vaccination status. CONCLUSION: Clinical suspicion may facilitate and improve the detection of FGTB, with chronic pelvic pain identified as the predominant clinical presentation among women in eastern Sudan.


Subject(s)
Tuberculosis, Female Genital/diagnosis , Tuberculosis, Female Genital/epidemiology , Abdominal Pain/diagnosis , Abdominal Pain/epidemiology , Adult , BCG Vaccine/administration & dosage , Body Mass Index , Chronic Disease , Cross-Sectional Studies , Dyspareunia/diagnosis , Dyspareunia/epidemiology , Educational Status , Female , Granulomatous Disease, Chronic/diagnosis , Granulomatous Disease, Chronic/epidemiology , Humans , Incidence , Infertility, Female/diagnosis , Infertility, Female/epidemiology , Menstruation Disturbances/diagnosis , Menstruation Disturbances/epidemiology , Middle Aged , Pelvic Inflammatory Disease/diagnosis , Pelvic Inflammatory Disease/epidemiology , Pelvic Pain/diagnosis , Pelvic Pain/epidemiology , Prevalence , Sudan/epidemiology
18.
BMC Res Notes ; 5: 202, 2012 Jul 10.
Article in English | MEDLINE | ID: mdl-22537662

ABSTRACT

BACKGROUND: The increased heterogeneity in the distribution of social and biological risk factors makes the epidemiology of anaemia a real challenge. A cross-sectional study was conducted at Kassala, Eastern Sudan during the period of January-March 2011 to investigate the prevalence and predictors of anaemia among adults (> 15 years old). FINDINGS: Out of 646, 234 (36.2%) adults had anaemia; 68 (10.5%); 129 (20.0%) and 37 (5.7%) had mild, moderate and severe anaemia, respectively. In logistic regression analyses, age (OR = 1.0, CI = 0.9-1, P = 0.7), rural vs. urban residency (OR = 0.9, CI = 0.7-1.3, P = 0.9), female vs. male gender (OR = 0.8, CI = 0.6-1.1, P = 0.3), educational level ≥ secondary level vs. < secondary level (OR = 1.0, CI = 0.6-1.6, P = 0.8) and Hudandawa vs. non-Hudandawa ethnicity (OR = 0.8, CI = 0.6-1, P = 0.1) were not associated with anaemia. CONCLUSION: There was a high prevalence of anaemia in this setting, anaemia affected adults regardless to their age, sex and educational level. Therefore, anaemia is needed to be screened for routinely and supplements have to be employed in this setting.


Subject(s)
Anemia/epidemiology , Rural Population/statistics & numerical data , Urban Population/statistics & numerical data , Adult , Anemia/pathology , Cross-Sectional Studies , Female , Humans , Logistic Models , Male , Middle Aged , Multivariate Analysis , Prevalence , Severity of Illness Index , Sudan/epidemiology
19.
J Infect Public Health ; 5(1): 63-6, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22341845

ABSTRACT

Because of the overlapping global incidence of tuberculosis (TB) and human immunodeficiency virus (HIV) infections, collaborative efforts are required for successful TB and HIV control programs. The current study was conducted at Kassala Hospital in Eastern Sudan and investigated the implementation of provider-initiated HIV testing and counseling (PITC) for patients infected with TB. Using a cross-sectional study design, patients who had been recently diagnosed with TB between January and December 2010 were consecutively enrolled. A total of 858 newly infected TB patients were enrolled in the study. Of these patients, 152 patients (17.7%) were given counseling, and 109 patients (12.7%) underwent HIV testing. The overall HIV infection rate among those tested was 18.3%. From a multivariate analysis, female sex (OR=17.0, 95% CI=8.7-33.1; P<0.001), education level below secondary education (OR=2.6, 95% CI=1.6-4.1; P<0.001), rural residency (OR=1.7, 95% CI=1.3-2.9; P=0.001), and non-governmental employee status (OR=10.4, 95% CI=6.7-16.3; P<0.001) were each associated with lower rates of PITC. Thus, in this setting, the frequency of PITC is low among TB-infected patients and is especially low for females, those of low educational status, and non-governmental employees.


Subject(s)
AIDS Serodiagnosis/statistics & numerical data , AIDS-Related Opportunistic Infections , Counseling , HIV Infections/diagnosis , Tuberculosis/complications , Adult , Cross-Sectional Studies , Female , HIV , HIV Infections/complications , HIV Seropositivity/diagnosis , Humans , Male , Mass Screening , Rural Population , Sudan
20.
J Med Virol ; 84(3): 500-3, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22246838

ABSTRACT

Eighty-one (71.7%) out of 113 patients had confirmed dengue infection (using ELISA IgM serology) at Kassala, Eastern Sudan during the period of August through November 2010. According to the WHO criteria, dengue fever (DF), dengue hemorrhagic fever (DHF), and dengue shock syndrome (DSS) were observed in 30.9, 58, and 11.1% of these patients, respectively. The mean age of these 81 patients was 25.5 years. Male:female ratio was 1.8:1. Various symptoms including fever (100%), headache (75.3%), vomiting (55.6%), nausea (53.1%), and backache (30.9%) were observed among these patients. Thrombocytopenia (<100/10(9) platelets/L), and leucopenia (WBC count <4,000 × 10(9) cells/L) and hemoconcentration (hematocrit >45) were reported in 86.4, 69.1, and 67.9% of the patients, respectively. High alanine aminotransferase (ALT, >65 U/L) and aspartate aminotransferase (AST >37 U/L) were seen in 9.9 and 14.8% of the patients, respectively. There were five (6.1%) deaths, three of them had DHF and the other two patients had DSS.


Subject(s)
Dengue/epidemiology , Epidemics , Severe Dengue/epidemiology , Adolescent , Adult , Child , Dengue/diagnosis , Female , Humans , Male , Middle Aged , Severe Dengue/diagnosis , Sudan/epidemiology , Young Adult
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