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1.
Acta Academiae Medicinae Sinicae ; (6): 530-532, 2023.
Article in Chinese | WPRIM | ID: wpr-981302

ABSTRACT

The acquired immunodeficiency syndrome patients with compromised immunity are prone to hemophagocytic syndrome secondary to opportunistic infections.This paper reports a rare case of hemophagocytic syndrome secondary to human parvovirus B19 infection in an acquired immunodeficiency syndrome patient,and analyzes the clinical characteristics,aiming to improve the diagnosis and treatment of the disease and prevent missed diagnosis and misdiagnosis.


Subject(s)
Humans , Lymphohistiocytosis, Hemophagocytic/drug therapy , Erythema Infectiosum/complications , Acquired Immunodeficiency Syndrome/complications , Parvoviridae Infections/diagnosis , Parvovirus B19, Human
2.
Rev. chil. infectol ; 39(1): 95-99, feb. 2022. ilus
Article in Spanish | LILACS | ID: biblio-1388339

ABSTRACT

Resumen El parvovirus B19 es causante de una variedad de enfermedades exantemáticas durante la infancia y adolescencia, como el eritema infeccioso y el síndrome papular purpúrico en guante y calcetín. Este último es una acrodermatitis aguda, inusual y benigna, que puede asociarse a aftas orales, fiebre y otros síntomas constitucionales. Existen casos atípicos como la púrpura febril en otras localizaciones, sin cumplir la distribución característica en guante y calcetín de forma simétrica o con un mayor componente de eritrodermia. Presentamos el caso de una adolescente de 12 años con un síndrome papular purpúrico de distribución atípica por parvovirus B19.


Abstract Parvovirus B19 is the cause of a variety of exanthematous diseases during childhood and adolescence, such as erythema infectiosum and papular purpuric gloves and socks syndrome. This is an unusual, benign and acute acrodermatitis. Aphtous stomatitis, fever and other systemic symptoms can be associated with the eruption of the purpuric rash. Uncommon patterns such as asymmetrical distribution or erythematous involvement llave recently been described as additional features of PVB19-associated purpuric petechial eruption. This is a case report of a 12-year-old female with an atypical involvement of a papular-purpuric syndrome caused by human parvovirus B19.


Subject(s)
Humans , Female , Child , Purpura/etiology , Parvovirus B19, Human , Erythema Infectiosum/complications , Erythema Infectiosum/diagnosis , Foot Dermatoses/complications , Syndrome
3.
Rev. chil. infectol ; 38(1): 114-118, feb. 2021.
Article in Spanish | LILACS | ID: biblio-1388198

ABSTRACT

Resumen La infección por parvovirus humano B19 es una de las complicaciones comunes en pacientes diagnosticados de enfermedad de células falciformes (ECF). Se caracteriza por una anemia grave con reticulocitopenia, pudiendo estar acompañada de otras manifestaciones clínicas. En ocasiones, la infección puede ocurrir de modo simultáneo en contactos intrafamiliares de un paciente también con ECF. Es fundamental el reconocimiento temprano de esta complicación y el diagnóstico diferencial con otras patologías para su correcto manejo y tratamiento. Presentamos el caso de dos hermanos con ECF e infección por parvovirus humano B19.


Abstract Human parvovirus B19 infection is one of the common complications of patients diagnosed with Sickle cell disease (SCD). Parvovirus infections are characterized by a severe anemia with reticulocytopenia, sometimes presenting with other clinical manifestations. The infection can occur simultaneously in patient's cohabitants also diagnosed with SCD. Early recognition and differential diagnosis are essential for a proper disease management and treatment. We present two siblings with SCD and human parvovirus B19 infection.


Subject(s)
Humans , Male , Child , Parvovirus B19, Human , Erythema Infectiosum , Parvoviridae Infections , Anemia, Sickle Cell , Parvovirus B19, Human/genetics , Erythema Infectiosum/diagnosis , Parvoviridae Infections/complications , Parvoviridae Infections/diagnosis , Siblings , Anemia, Sickle Cell/complications
4.
Rev. chil. infectol ; 37(6)dic. 2020.
Article in Spanish | LILACS | ID: biblio-1388187

ABSTRACT

Resumen La infección aguda por parvovirus B19 es una enfermedad autolimitada en pacientes sin trastornos inmunitarios. Sin embargo, en pacientes con discrasias sanguíneas pueden manifestarse con una crisis aplásica. Presentamos el caso de un varón de 48 años, con una esferocitosis hereditaria no diagnosticada previamente, la cual debutó con una crisis aplásica inducida por una infección aguda de parvovirus B19. La sospecha clínica se planteó luego del análisis histopatológico de la médula ósea, en el que se observó una hiperplasia eritroblástica, con precursores eritroides gigantes e inclusiones nucleares virales, y cuyo análisis inmunohistoquímico fue positivo para la proteína de la cápside viral VP1 y VP2 de parvovirus B19 en células infectadas. Se confirmó la sospecha diagnóstica con la detección de anticuerpos IgM de parvovirus B19. De acuerdo a nuestra revisión, este es el primer reporte de un adulto en Latinoamérica que debutó con una crisis aplásica inducida por una infección aguda por parvovirus B19, como primera manifestación de una esferocitosis hereditaria.


Abstract Acute parvovirus B19 infection is a self-limiting disease in patients with normal immune response. However, in patients with blood dyscrasias, it is possible to present with an aplastic crisis. We present the case of a 48-year-old man who had developed an aplastic crisis as a result of an acute parvovirus B19 infection with an undiagnosed hereditary spherocytosis. Suspicions of the parvovirus infection began to arise after a routine bone marrow histopathological analysis which showed erythroblastic hyperplasia with giant erythroid precursor and viral inclusions. A subsequent immunohistochemical analysis tested positive for VP1 and VP2 capsid proteins of parvovirus B19 in infected cells. The diagnostic suspicion was later confirmed with the presence of anti-parvovirus B19 IgM. According to our review, this is the first published case in Latin America that documents an adult patient with normal immune response whose first symptom of hereditary spherocytosis was an aplastic crisis induced by an acute parvovirus B19 infection.


Subject(s)
Adult , Humans , Male , Middle Aged , Spherocytosis, Hereditary , Parvovirus B19, Human , Erythema Infectiosum , Parvoviridae Infections , Parvoviridae Infections/complications , Parvoviridae Infections/diagnosis , Hyperplasia
5.
Chinese Journal of Biotechnology ; (12): 879-890, 2020.
Article in Chinese | WPRIM | ID: wpr-826888

ABSTRACT

Human parvovirus B19 (B19 virus) is one of the two parvoviruses that cause human diseases. As an important pathogen to humans, it causes infectious erythema in children, acute aplastic anemia, fetal edema and death. In this review, we focus on the recent advances in the molecular virology of B19V, such as viral genotypes, viral receptor, genomic features and viral replication, viral transcription and post-transcription regulation, viral nonstructural and structural protein features and functions, viral diagnosis and antiviral agents, to provide reference for further study of B19 pathogenesis mechanisms, treatment and diagnostic strategies.


Subject(s)
Humans , Antiviral Agents , DNA, Viral , Genetics , Erythema Infectiosum , Diagnosis , Virology , Genotype , Parvovirus B19, Human , Genetics , Virology , Virus Replication
6.
Rev. invest. clín ; 71(4): 265-274, Jul.-Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1289695

ABSTRACT

Abstract Background There is no specific antiviral treatment for parvovirus B19 (PVB19) infection. Objective The objective of this study was to study the treatment and outcome of PVB19 infection in kidney transplant recipients (KTR) at our institution, and cases published in the medical literature. Methods We conducted a retrospective review of PVB19 infection in KTR at an academic medical center over a 16-year period and summarized the data on its treatment and outcome in 120 KTR in the medical literature. Results In our cohort of eight patients, the median time to the onset of PVB19 disease was 7.2 weeks after transplantation. All patients had severe aregenerative anemia (mean hemoglobin (Hb) of 6.2 ± 1.0 g/dl); all were treated with a reduction in their immunosuppressive regimen and the administration of single-dose intravenous immunoglobulin (IVIG) (mean total dosage of 0.87 ± 0.38 g/kg). The median time to anemia improvement (Hb >10 g/dl) was 3-week post-treatment. No recurrences were documented during follow-up (median 25 months). Among 128 patients (including our cohort of 8 and 120 reported in literature), therapeutic strategies included: 43% IVIG alone, 39% IVIG and reduced immunosuppression, 9% reduction of immunosuppression, and 9% conservative therapy. Clinical relapses were observed in 35% of 71 reported cases. Conclusions In KTR, decreasing immunosuppression and the administration of low-dose immunoglobulin seem to be not worse than the standard dose in PVB19 infection.


Subject(s)
Humans , Male , Female , Young Adult , Kidney Transplantation/methods , Immunoglobulins, Intravenous/administration & dosage , Erythema Infectiosum/therapy , Immunosuppressive Agents/administration & dosage , Recurrence , Retrospective Studies , Follow-Up Studies , Treatment Outcome , Erythema Infectiosum/etiology , Academic Medical Centers
7.
Medisan ; 23(1)ene.-feb. 2019. ilus
Article in Spanish | LILACS | ID: biblio-990182

ABSTRACT

Se presenta el caso clínico de un lactante de 9 meses de edad, atendido en el cuerpo de guardia del Policlínico Docente José Martí de la provincia de Santiago de Cuba, por presentar lesiones exantemáticas y eritematosas en la piel, con ampollas alrededor de la boca, así como en manos, piernas y ambos pies, además de fiebre. Se le diagnosticó la enfermedad de boca, mano y pie, teniendo en cuenta la clínica y el incremento de esta afección trasmitida por el virus de Coxsackie en el municipio, por lo cual fue ingresado en el hogar, con vigilancia y seguimiento por su médico y enfermera de la familia, quienes indicaron las medidas para el control higiénico sanitario y de sostén que deben conocerse y aplicarse en el medio familiar para disminuir el riesgo de la infección.


The case report of a 9 months of age infant assisted in the emergency room of José Martí Teaching Polyclinic in Santiago de Cuba is presented, due to exanthematic and erythematous lesions in the skin, with bladders around the mouth, as well as in hands, legs and both feet, besides fever. The mouth, hand and foot disease was diagnosed, keeping in mind the clinic and the increment of this disorder transmitted by the Coxsackie virus in the municipality, reason why he was admitted at home, with medical supervision and followed by the family nurse and physician who indicated the measures for the health control that should be known and applied in the family to decrease the risk of infection.


Subject(s)
Humans , Male , Infant , Coxsackievirus Infections , Hand, Foot and Mouth Disease , Erythema Infectiosum , Exanthema
8.
Rev. bras. ginecol. obstet ; 40(6): 372-376, June 2018. tab
Article in English | LILACS | ID: biblio-959001

ABSTRACT

Abstract Parvovirus B19 has tropism for red line blood cells, causing immune hydrops during pregnancy. A positive anti-Kell Coombs reaction usually happens during pregnancy when there is production of antibodies that target Kell antigens, but cross reactions to other antigens may occur. A 24-year-old Gypsy primigravida, 0 Rhesus positive, presented with persistent isolated hyperthermia for 2 weeks and a positive indirect Coombs test result with anti-Kell antibodies at routine tests. She had a 19-week live fetus. The blood tests revealed bicytopenia with iron deficiency anemia, leucopoenia with neutropenia, and elevated C-reactive protein. She was medicated with imipenem, and had a slow clinical recovery. Blood, urine and sputum samples were taken to perform cultures and to exclude other systemic infections. Escherichia coli was isolated in the urine, which most probably caused a transient cross anti-Kell reaction. Haemophilus influenza in the sputum and seroconversion to parvovirus B19 was confirmed, causing unusual deficits in the white cells, culminating in febrile neutropenia. Despite the patient's lack of compliance to the medical care, both maternal and fetal/neonatal outcomes were good. This a rare case report of 2 rare phenomena, a cross anti-Kell reaction to E. coli and parvovirus B19 infection with tropism for white cells causing febrile neutropenia, both events occurring simultaneously during pregnancy.


Resumo O parvovírus B19 tem tropismo para as células sanguíneas da linha vermelha, causando hidropsia imune durante a gravidez. O teste Coombs anti-Kell positivo ocorre durante a gravidez quando há produção de anticorpos contra os antígenos de Kell, mas pode haver reações cruzadas para outros antígenos. Uma grávida primigesta de etnia cigana, de 24 anos, 0 Rhesus positivo, recorreu ao hospital às 19 semanas de gestação por hipertermia isolada persistente por 2 semanas e umteste Coombs indireto positivo por anticorpos anti-Kell em testes de rotina da gravidez. O estudo analítico revelou bicitopenia com anemia ferropênica, leucopenia com neutropenia, e elevação da proteína C-reativa. A paciente foi medicada com imipenem, e teve uma recuperação clínica lenta. Foram colhidas amostras de sangue, urina e expectoração para culturas bacterianas. Na urina, foi isolada Escherichia coli, o que provavelmente causou a reação anti-Kell cruzada transitória. Na expectoração, foi isolada Haemophilus influenza, e foi confirmada seroconversão para o parvovírus B19, que causou um déficit incomum na linhagem sanguínea branca, culminando com neutropenia febril. Apesar da má adesão aos cuidados médicos, os desfechos materno e fetal/neonatal foram bons. Este é um caso de 2 fenômenos raros, uma reação cruzada anti-Kell à infecção por E. coli, e parvovírus B19 comtropismo para células brancas causando neutropenia febril, ambos ocorrendo simultaneamente durante a gravidez.


Subject(s)
Humans , Female , Pregnancy , Young Adult , Pregnancy Complications, Infectious/immunology , Parvovirus B19, Human , Erythema Infectiosum/complications , Erythema Infectiosum/immunology , Escherichia coli/immunology , Febrile Neutropenia/immunology , Febrile Neutropenia/virology , Kell Blood-Group System/immunology , Cross Reactions
9.
Acta méd. colomb ; 43(1): 42-44, ene.-mar. 2018. tab
Article in Spanish | LILACS, COLNAL | ID: biblio-949534

ABSTRACT

Resumen La infección crónica por parvovirus B19 en pacientes seropositivos para el virus de inmunodeficiencia humana (VIH) es una causa identificable y tratable de anemia en esta población, que en nuestro medio aún no ha sido muy estudiada. La búsqueda activa de este patógeno en pacientes VIH positivos con anemia grave sin compromiso de otras líneas celulares puede llevar a una mejoría en la calidad de vida en el tiempo y reducción de los costos de la enfermedad para el sistema de salud. Nosotros presentamos el caso de un paciente con síndrome de inmunodeficiencia adquirida y anemia a quien se le identifico parvovirus B19. (Acta Med Colomb 2018; 43: 42-44).


Abstract The chronic infection by parvovirus B19 in seropositive patients for the human immunodeficiency virus (HIV) is an identifiable and treatable cause of anemia in this population, which in our environment has not yet been widely studied. The active search for this pathogen in HIV positive patients with severe anemia without compromising other cell lines can lead to an improvement in the quality of life over time and reduction of the costs of the disease to the health system. We present the case of a patient with acquired immunodeficiency syndrome and anemia who was identified as parvovirus B19. (Acta Med Colomb 2018; 43: 42-44).


Subject(s)
Humans , Male , Adult , Red-Cell Aplasia, Pure , Quality of Life , Acquired Immunodeficiency Syndrome , HIV-1 , Parvovirus B19, Human , Erythema Infectiosum
10.
Rev. Assoc. Med. Bras. (1992) ; 63(3): 224-228, Mar. 2017. tab, graf
Article in English | LILACS | ID: biblio-956436

ABSTRACT

Summary Introduction: Virus surveillance strategies and genetic characterization of human parvovirus B19 (B19V) are important tools for regional and global control of viral outbreak. In São Paulo, Brazil, we performed a study of B19V by monitoring the spread of this virus, which is an infectious agent and could be mistakenly reported as a rash and other types of infection. Method: Serum samples were subjected to enzyme immunoassay, real time polymerase chain reaction, and sequencing. Results: From the 462 patients with suspected cases of exanthematic infections, the results of the 164 serum samples were positive for B19V immunoglobulin M. Among these cases, there were 38 patients with erythema infections and B19-associated with other infections such as encephalitis, hydrops fetalis, chronic anemia, hematological malignancies. These samples were sequenced and identified as genotype 1. Conclusion: This study showed patients with infections caused by B19V and sequencing genotype 1. Continuous monitoring is necessary to detect all known genotypes, and the emergence of new genotypes of these viruses for case management in public health control activities.


Resumo Introdução: Estratégias de vigilância para o parvovírus humano B19 e caracterização genética são ferramentas importantes para o controle regional e global do surto viral. Em São Paulo, Brasil, foi realizado um estudo de parvovírus B19, monitorando a disseminação desse vírus, que é um agente infeccioso e poderia ser erroneamente relatado como uma erupção cutânea e outros tipos de infecções. Método: As amostras de soro foram submetidas ao ensaio imunoenzimático, PCR quantitativo em tempo real e sequenciamento. Resultados: Dos 462 pacientes com casos suspeitos de infecções exantemáticas, os resultados das 164 amostras de soro foram positivos para parvovírus B19 imunoglobulina M. Entre eles, 38 pacientes com eritema infeccioso apresentaram B19 associado com outras infecções, como encefalite, hidropisia fetal, anemia crônica, doenças hematológicas malignas. Essas amostras foram sequenciadas e identificadas como genótipo 1. Conclusão: Os pacientes foram infectados com parvovírus B19 e apresentaram genótipo 1. Monitoração contínua é necessária para detectar todos os genótipos conhecidos e o surgimento de novos genótipos para o controle de casos em saúde pública.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Young Adult , Parvovirus B19, Human/isolation & purification , Parvovirus B19, Human/genetics , Erythema Infectiosum/virology , Genotype , Brazil , DNA, Viral/blood , Immunoglobulin G/blood , Immunoglobulin M/blood , Immunoassay , Hydrops Fetalis/virology , Population Surveillance , Erythema Infectiosum/blood , Reverse Transcriptase Polymerase Chain Reaction , Anemia/virology , Middle Aged , Antibodies, Viral/blood
11.
Braz. j. infect. dis ; 21(1): 102-106, Jan.-Feb. 2017. graf
Article in English | LILACS | ID: biblio-1039181

ABSTRACT

Abstract This study was conducted to provide information on the genetic diversity of human parvovirus B19 (B19V) circulating in the municipality of Niterói, Rio de Janeiro, Southeast Brazil during 1996-2006, a period with two distinct outbreaks of B19V infection: 1999-2000 and 2004-2005. A total of 27 sera from patients with erythema infectiosum and five sera from HIV-infected patients that tested positive for B19V DNA during the study period were analyzed. To genotype B19V strains, a semi-nested PCR for partial amplification of the capsid gene was performed and sequence analysis revealed that 31 sequences belonged to subgenotype 1a (G1a) of the main genotype 1 and one sequence was characterized as subgenotype 3b (G3b). The phylogenetic tree supported the division of the G1a into two well-defined clades with 1.3% of divergence. The low diversity of the G1a strains may be explained by the fact that all patients had acute B19V infection and 30/32 sera were collected during two distinct outbreaks. The G3b strain was from an HIV-infected patient who seroconverted to anti-B19 IgG antibodies in September/2005. This is the first report of G3b in the state of Rio de Janeiro.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Young Adult , Disease Outbreaks , Parvovirus B19, Human/genetics , Erythema Infectiosum/epidemiology , Erythema Infectiosum/virology , Phylogeny , Brazil/epidemiology , Polymerase Chain Reaction , Erythema Infectiosum/genetics , Sequence Analysis, DNA , Genotype
12.
Rev. bras. reumatol ; 55(2): 185-188, Mar-Apr/2015. tab, graf
Article in Portuguese | LILACS | ID: lil-746151

ABSTRACT

A infecção pelo Parvovírus B19 costuma ser assintomática, mas as expressões clínicas podem incluir crise aplástica transitória, eritema infeccioso, hidropisia fetal não imune e aplasia crônica da série vermelha. Esse vírus também se associa à artrite reumatoide e a outras doenças autoimunes do tecido conjuntivo; entretanto, não conseguimos identificar na literatura nenhum caso de miosite aguda em adulto desenvolvida depois de infecção pelo Parvovírus B19. Por essa razão, gostaríamos de apresentar um caso raro de miosite aguda desenvolvida depois de infecção pelo Parvovírus B19. Nos pacientes que apresentam sintomas de febre, rash nas pernas e miosite, devem ser consideradas as infecções virais, como a causada pelo Parvovírus B19.


Parvovirus B19 infection is often asymptomatic, but clinical expressions may include transient aplastic crisis, erythema infectiosum, non-immune hydrops fetalis, and chronic red cell aplasia. This virus has also been associated with rheumatoid arthritis and other autoimmune connective tissue diseases; however, we could not identify any acute adult myositis case developed after a Parvovirus B19 infection in the literature. For this reason, we would like to present a rare case of acute myositis developed after Parvovirus B19 infection. In patients presenting with symptoms of fever, rash on the legs and myositis, viral infections such as Parvovirus B19 should be kept in mind.


Subject(s)
Humans , Male , Adult , Erythema Infectiosum , Myositis/virology , Acute Disease
14.
Korean Journal of Dermatology ; : 671-672, 2014.
Article in Korean | WPRIM | ID: wpr-61349

ABSTRACT

No abstract available.


Subject(s)
Erythema Infectiosum
15.
Laboratory Medicine Online ; : 166-169, 2012.
Article in Korean | WPRIM | ID: wpr-145045

ABSTRACT

Hereditary spherocytosis (HS) is a genetic disorder characterized by the production and destruction of spherocytes due to a deficiency of red cell membrane cytoskeletal proteins, resulting in the clinical presentation of chronic hemolytic anemia. This disease can be accompanied by an aplastic crisis due to parvovirus B19 infection. Parvovirus B19 infection causes diseases such as erythema infectiosum and arthritis, and can also trigger various autoimmune diseases, including autoimmune hemolytic anemia (AIHA). Here, we report a rare case of AIHA developing 3 months after an aplastic crisis due to parvovirus B19 infection in an 11-year-old boy with HS and provide the relevant literature review.


Subject(s)
Child , Humans , Anemia, Hemolytic , Anemia, Hemolytic, Autoimmune , Arthritis , Autoimmune Diseases , Cell Membrane , Cytoskeletal Proteins , Erythema Infectiosum , Parvovirus , Spherocytes , Spherocytosis, Hereditary
16.
Laboratory Medicine Online ; : 166-169, 2012.
Article in Korean | WPRIM | ID: wpr-145032

ABSTRACT

Hereditary spherocytosis (HS) is a genetic disorder characterized by the production and destruction of spherocytes due to a deficiency of red cell membrane cytoskeletal proteins, resulting in the clinical presentation of chronic hemolytic anemia. This disease can be accompanied by an aplastic crisis due to parvovirus B19 infection. Parvovirus B19 infection causes diseases such as erythema infectiosum and arthritis, and can also trigger various autoimmune diseases, including autoimmune hemolytic anemia (AIHA). Here, we report a rare case of AIHA developing 3 months after an aplastic crisis due to parvovirus B19 infection in an 11-year-old boy with HS and provide the relevant literature review.


Subject(s)
Child , Humans , Anemia, Hemolytic , Anemia, Hemolytic, Autoimmune , Arthritis , Autoimmune Diseases , Cell Membrane , Cytoskeletal Proteins , Erythema Infectiosum , Parvovirus , Spherocytes , Spherocytosis, Hereditary
17.
Chinese Journal of Contemporary Pediatrics ; (12): 999-1001, 2009.
Article in Chinese | WPRIM | ID: wpr-305136

ABSTRACT

<p><b>OBJECTIVE</b>To study the relationship between human parvovirus B19 infection and childhood idiopathic thrombocytopenic purpura (ITP) by the principle of evidence based medicine.</p><p><b>METHODS</b>Papers related to the relationship between human parvovirus B19 infection and childhood ITP published between 1994 and 2008 were retrieved electronically from the Chinese Journals Full-text Database and the Wanfang Data. These relevant papers on case-control trials were statistically studied by meta analysis.</p><p><b>RESULTS</b>Eight papers that met the inclusion criteria were included for this meta analysis. Five hundred and sixteen cases of childhood ITP and 246 healthy controls were enrolled. The meta analysis showed that the incidence of human parvovirus B19 infection in the ITP group was significantly higher than that in the control group (OR=13.71, 95% CI=7.07-26.59, Z=7.75, p<0.01).</p><p><b>CONCLUSIONS</b>Human parvovirus B19 infection is closely associated with childhood ITP.</p>


Subject(s)
Child , Female , Humans , Male , Erythema Infectiosum , Purpura, Thrombocytopenic, Idiopathic
18.
Chinese Journal of Pathology ; (12): 91-94, 2009.
Article in Chinese | WPRIM | ID: wpr-319780

ABSTRACT

<p><b>OBJECTIVE</b>To characterize the risks and histopathological features of parvovirus B19 infection of infants in perinatal period.</p><p><b>METHODS</b>Routine pathological examination was performed on 1 neonate, 2 dead fetuses and 2 placentas using either autopsy or biopsy materials.</p><p><b>RESULTS</b>The diagnostic intranuclear inclusions were found in erythroblasts in the bone marrow, liver, spleen and lungs in one case, in the spleen and liver in one case, in the spleen in one case, and in the placentas in two cases.</p><p><b>CONCLUSIONS</b>Severe hemolytic anemia or fetal hydrop or hemophagocytosis caused by the infection of parvovirus B19 can lead to death of infected neonates and fetus. Pathological confirmation of parvovirus B19 infection relies on the identification of erythroblasts containing the diagnostic intranuclear inclusions.</p>


Subject(s)
Female , Humans , Infant, Newborn , Pregnancy , Anemia , Pathology , Virology , Autopsy , Biopsy , Erythema Infectiosum , Blood , Pathology , Virology , Erythroblasts , Fetal Death , Fetus , Hydrops Fetalis , Pathology , Virology , Inclusion Bodies , Lymphohistiocytosis, Hemophagocytic , Pathology , Virology , Parvovirus B19, Human , Placenta , Pathology , Virology , Stillbirth
19.
Evid. actual. práct. ambul ; 11(5): 144-144, sept.-oct. 2008. ilus
Article in Spanish | LILACS | ID: lil-516502

ABSTRACT

Este artículo presenta un caso de exantema agudo y sus aspectos clínicos, con especial énfasis en sus diagnósticos diferenciales.


Subject(s)
Humans , Female , Child , Clinical Diagnosis , Diagnosis, Differential , Erythema Infectiosum , Exanthema/diagnosis
20.
Rev. Soc. Bras. Med. Trop ; 41(4): 338-344, jul.-ago. 2008. graf, tab
Article in Portuguese | LILACS | ID: lil-494486

ABSTRACT

O estudo teve como objetivo verificar a freqüência de sarampo, rubéola, dengue e eritema infeccioso entre casos suspeitos de sarampo e rubéola, no estado de Pernambuco, Brasil. Foram testadas 1.161 amostras de soro coletadas no período de 2001 a 2004, para as quatro viroses, utilizando-se ensaios imunoenzimáticos para detecção de anticorpos IgM. Desse total, 276 (23,8 por cento) amostras foram positivas para uma das quatro viroses analisadas. Foram detectados 196 (16,9 por cento) casos positivos para dengue, 38 (3,3 por cento) para eritema infeccioso (parvovírus B19), 32 (2,8 por cento) para rubéola e 10 (0,9 por cento) para sarampo. Entre os casos suspeitos de sarampo e rubéola, a infecção pelo vírus dengue foi a mais freqüente, seguida pelo parvovírus B19. A semelhança de manifestações clínicas entre as doenças exantemáticas contribui para dificultar o diagnóstico de sarampo, rubéola, dengue e eritema infeccioso, quando observados apenas os critérios clínicos. Deve-se salientar que os quatro testes utilizados foram insuficientes para diagnosticar 76,2 por cento das doenças febris exantemáticas notificadas. Este é o primeiro estudo que evidencia a circulação de parvovírus B19 humano em Pernambuco.


This study had the aim of investigating the frequency of measles, rubella, dengue and erythema infectiosum among suspected cases of measles and/or rubella in the state of Pernambuco, Brazil. A total of 1,161 serum samples collected between 2001 and 2004 were tested for these four viral diseases, using enzyme immunoassays to detect IgM antibodies. Out of this total, 276 (23.8 percent) samples were positive for one of the four viral diseases analyzed. There were 196 positive cases (16.9 percent) for dengue, 38 (3.3 percent) for erythema infectiosum (parvovirus B19), 32 (2.8 percent) for rubella and 10 (0.9 percent) for measles. Among the suspected cases of measles and rubella, dengue infection was the most frequent, followed by parvovirus B19. The similarity of the clinical manifestations among rash diseases contributes towards making it difficult to diagnose measles, rubella, dengue and erythema infectiosum on clinical grounds alone. It must be emphasized that the four tests used were insufficient for diagnosing 76.2 percent of the febrile and rash diseases notified. This is the first study bringing evidence of human parvovirus B19 circulation in Pernambuco.


Subject(s)
Adolescent , Adult , Child , Child, Preschool , Female , Humans , Infant , Male , Antibodies, Viral/blood , Dengue/epidemiology , Erythema Infectiosum/epidemiology , Immunoglobulin M/blood , Measles/epidemiology , Rubella/epidemiology , Brazil/epidemiology , Cross-Sectional Studies , Dengue Virus/immunology , Dengue/diagnosis , Erythema Infectiosum/diagnosis , Immunoenzyme Techniques , Measles/diagnosis , Morbillivirus/immunology , /immunology , Rubella virus/immunology , Rubella/diagnosis , Seasons
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