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Canine parvovirus (CPV), canine coronavirus (CCoV) and canine rotavirus (CRV) are the three main causative viruses of diarrhea in dogs with similar clinical symptoms;thereby it is necessary to establish a high effective molecular detection method for differentiating the above pathogens. By optimizing the primer concentration and annealing temperature, a triple PCR method was established for simultaneous detection of CPV, CCoV and CRV, and then the specificity, sensitivity and repeatability of the method were tested. The results showed that the target fragments of CPV VP2 gene (253 bp), CCoV ORF-1b gene (379 bp) and CRV VP6 gene (852 bp) could be accurately amplified by the triple PCR method with high specificity, the detection limits of CPV, CCOV and CRV were 6.44x10-1 pg/L, 8.72x10-1 pg/L and 8.35x10-1 pg/L respectively with high sensitivity, and the method had good stability. Using this triple PCR method, 135 canine diarrhea fecal samples collected in Chengdu region from 2019 to 2020 were detected, and compared with those of single PCR method. The detection rates of CPV, CCoV and CRV were 16.30%, 20.74% and 4.44%, respectively, and the total infection rate was 51.11% (65/135) with 20.00% (13/65) co-infection rate. The detection results were consistent with three single PCR methods. In conclusion, CPV/CCoV/CRV triple PCR method successfully established in this paper can be applied as an effective molecular method to detection of related pathogens and to the epidemiological investigation.
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To establish a method for simultaneous detection of porcine circovirus type 2 (PCV2) and porcine circovirus type 3 (PCV3), specific primers and TaqMan probes were designed after sequence alignment according to the specific sequences of PCV2 Cap gene and PCV3 Cap gene on GenBank. By optimizing the reaction conditions, a duplex fluorescence quantitative PCR detection method for simultaneous detection of porcine circovirus type 2 and 3 was established, and the specificity, sensitivity, and reproducibility were tested. Specificity test results showed that in addition to the positive test results for PCV2 and PCV3, tests for PRRSV, CSFV, PPV, PRV, PEDV, and TGEV were all negative with no cross-reaction, indicating its good specificity. Sensitivity test results showed that the minimum detection limit for detection of PCV2 and PCV3 can both reach 10 copies.L-1, indicating its high sensitivity. The coefficient of variation within and between groups of this method was less than 2%, indicating its good stability. A total of 181 pork and whole blood samples collected from Zhejiang Province were tested using the detection method established in this article and the standard common fluorescent PCR detection method. The results showed that the positive rate of PCV2 was 50.83% (92/181), the positive rate of PCV3 was 37.57% (68/181), and the co-infection rate of PCV2 and PCV3 was 12.15% (22/181). The above detection results of ordinary fluorescent PCR were 50.28% (91/181), 36.46% (66/181), and the co-infection rate was 11.60% (21/181). The coincidence rates of the two methods for PCV2 and PCV3 can reach 98.91% and 97.06%, and the coincidence rate for PCV2 and PCV3 mixed infection were 95.45%. In summary, the duplex fluorescence quantitative PCR detection method established in this experiment can distinguish PCV2 and PCV3 rapidly, which can be used for pathogen detection and epidemiological investigation.
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Background: Parvovirus B19 is an icosahedral, single-strand DNA, non-enveloped virus. Its DNA genome has 5596 bases and is from the Parvoviridae family. Beta thalassemia, a hereditary illness, causes ruptured red blood cells and acute anemia due to aberrant haemoglobin synthesis. Aim(s): Detect parvovirus (B19) in beta-thalassemia major and study its association with demographic factors like sex, age, place of residence, etc. in specific patient groups. Method(s): From August 2022 to the end of February 2023. This study included the collection of serum samples for the detection of human parvovirus antigen in 60 patients with beta-thalassemia major. The control group consisted of 30 individuals of different ages who did not have beta-thalassemia. All these serum samples are detected for parvovirus antigen by the ELISA method. Result(s): The results of this study showed that the rate of detection of the presence of human parvovirus B19 in the group of patients with beta-thalassemia major was not affected by most of the demographic factors. As there were no statistically significant differences between the study groups in terms of gender, age, in addition to COVID-19 infection, and vaccination against COVID-19. However, the rate of beta-thalassemia major was significantly higher in rural areas than in urban areas (p = 0.040).Copyright © 2021 Muslim OT et al.
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These proceedings comprise 85 articles spanning diverse fields such as bacteriology, molecular biology, biotechnology, dermatology, infectious and parasitic diseases, epidemiology, physiotherapy, immunology, mycology, parasitology, pathology, collective health, and virology. The articles delve into a wide range of research topics, from repurposing drugs for Mycobacterium abscessus complex infections to utilising artificial intelligence for SARS-CoV-2 diagnosis. In bacteriology, investigations explore the correlation between smoking and Helicobacter pylori infection in gastric adenocarcinoma patients, as well as the resistance profiles of Staphylococcus aureus and Pseudomonas aeruginosa in tracheostomised children. Molecular biology studies focus on gene polymorphisms related to diseases like paracoccidioidomycosis. Biotechnology research emphasises bioactive molecules in species like Croton urucurana and the development of computational models for cytotoxicity prediction. Dermatology articles address stability characterisation in vegetable oil-based nanoemulsions. The section on infectious and parasitic diseases encompasses studies on COVID-19 vaccine response in pregnant women and the impact of infection prevention measures in rehabilitation hospitals. Epidemiology investigations analyse trends in premature mortality, tuberculosis in diabetic patients, and public adherence to non-pharmacological COVID-19 measures. Physiotherapy research covers topics such as telerehabilitation through a developed game and the prevalence of congenital anomalies. Immunology studies explore immune responses in HIV and Leishmaniasis, whilst mycology investigates the biotechnological potential of fungi from the cerrado biome. Parasitology research evaluates treatment efficacy against vectors parasites such as Aedes aegypti and Toxoplasma gondii. Pathology articles discuss intentional intoxication in cattle and the influence of curcumin on acute kidney injury therapy. Collective health studies focus on intervention plan development in healthcare settings and pesticide use in horticulture. Lastly, virology research investigates parvovirus occurrence in hospitalised children during the COVID-19 pandemic, hidden hepatitis B virus infection in inmates, and the prevalence of HPV and HTLV-1/2 infections in specific populations.
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A 40-year-old woman presented with four weeks of intermittent high-grade fever, cough, and joint pain, and two weeks of a generalized rash. She was found to have adult-onset Still's disease (AOSD) and rapidly developed macrophage activation syndrome (MAS) on the second day of admission. Among infectious etiologies, Epstein-Barr virus and members of the herpes virus family are common triggers of MAS. However, our patient was found to have reactivation/recurrence of parvovirus B19 infection as the cause; this is an uncommon trigger reported infrequently in the medical literature. Despite intensive treatment, the patient passed away.
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Intro: Canine parvovirus type 2 (PVC-2), Protoparvovirus genus of the Parvoviridae family, is a worldwide distribution virus that affects the Canidae family. In free-living coyotes (Canis latrans), the presence of the PCV-2a, PCV-2b and PCV-2c subtypes of PVC-2 has been reported, but there are no reports of their presence as a cause of clinical damage. The objective of this study is to report the presence of PVC-2c in an outbreak of mild gastroenteritis in three coyote pups detected in northeastern Mexico Methods: During the fall of 2019, in the suburban area of Monterrey, N.L., 3 affected coyote pups were detected with a mild gastroenteric condition consisting of mild diarrhea with loose stools, vomiting, dehydration, loss of appetite, pale mucous membranes, and low weight. Stool samples were tested for Canine Parvovirus (CPV-2), Canine Coronavirus (CCV) or Giardia antigens with a commercial kit. All samples were positive for CPV-2 and these were subsequently analyzed by PCR and sequencing of the CPV-2 VP2 gene. Using bioinformatics, the VP2 gene sequence data obtained were used to establish phylogenetic relationships with homologous sequences reported in coyotes and CPV-2 vaccines. Finding(s): The genetic sequence of VP2 obtained showed a high homology (98.1 to 100%) with CPV-2c. The sequences obtained from the pups showed 100% homology to each other. The phylogenetic tree showed that the sequences reported in coyotes are grouped in different clades and that the sequence of the VP2 gene of CPV-2c from coyote pups is grouped in a different monophyletic group. Conclusion(s): Information suggests that wild coyotes may not only act as asymptomatic reservoir hosts but may also be clinically affected by PVC-2c. It is necessary to carry out studies to know the effects of the genetic subtypes of PVC-2 in the population of coyotes and other wild canids of northeastern Mexico.Copyright © 2023
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Introduction: We report a case of drug-induced liver injury (DILI) induced by cannabis gummies containing Corydalis Rhizome. Case Description/Methods: A 37-year-old female presented to her primary care clinic with recurrent fevers, night sweats, and myalgias for 7 weeks accompanied by eye redness, brain fog, headache, nausea, and abdominal pain. She denied rashes, tick-bites, cough, dyspnea, chest pain, joint swelling, or genitourinary symptoms. Past medical history was notable for IBS, migraines, and anxiety. She reported edible marijuana use four times a week, rare alcohol use, and denied tobacco use. She denied a family history of liver disease. Physical exam was notable for tachycardia to 110 and scleral injection with the remainder of vitals and exam unremarkable. Initial labs were notable for AST 61, ALT 44 and CRP of 12. CBC, BMP, urinalysis, ESR, blood cultures, blood smear for parasite screen, tests for Lyme disease, Babesia, Tularemia, Anaplasma, Ehrlichia, Rickettsia, EBV, HIV, RPR, ANA, CMV, parvovirus B19, and chest x-ray were all negative. The patient was referred to infectious disease with further testing for West Nile, Leptospira, lymphocytic choriomeningitis virus, and COVID-19 returning negative. Repeat LFTs showed worsening transaminitis with ALT 979 and AST 712, alkaline phosphatase 88, total bilirubin 0.7, and albumin 4.9. Hepatitis workup including hepatitis A, B, and C, HSV, EBV, VZV serologies, AMA, ASMA, antiLKM Ab, acetaminophen level, INR, iron panel, CPK, TSH, and abdominal ultrasound were all normal. It was later discovered that her marijuana gummies contained Corydalis rhizome extract known to be hepatotoxic. Cessation of this drug was strongly advised. She was discharged with hepatology follow-up and underwent a liver biopsy showing patchy periportal and lobular inflammation with extension across the limiting plate, hepatocyte injury and apoptosis, and increased lipofuscin for age compatible with mild to moderate hepatitis. She had complete recovery after cessation of Corydalis-containing gummies. (Figure) Discussion: Our patient consumed '1906 Midnight', an American cannabis brand containing Corydalis rhizopus 100 mg, advertised to improve sleep, pain, and have a liver protective effect. A Korean systematic review on herbal-induced liver injury reported that Corydalis was the 3rd most frequent causative herb, with 36 cases. Although there are several personal accounts on social networking sites and other websites, there are no American-based publications reported on DILI from Corydalis. (Table Presented).
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Incidences of major feline viral diseases provide basic information for preventing viral disease in cats. Despite the growing interest in feline viral diseases, sero-surveillances have been lacking. In this study, we analyzed the diagnoses of feline viral diseases and conducted a sero surveillance of feline panleukopenia virus (FPV), feline calicivirus (FCV), feline herpesvirus-1 (FHV-1), and feline infectious peritonitis virus (FIPV) in Korean cats. Of the 204 confirmed cases since 2015, the numbers of diagnoses for FPV, FIPV, FCV, feline influenza virus, and FHV-1 were 156, 32, 12, 3, and 1 case, respectively. In total, 200 sera, collected between 2019 and 2021, were screened for the presence of antibodies against FPV, 2 FCVs, FHV-1, and FIPV using a hemagglutination inhibition test and a virus-neutralizing assay (VNA). The overall seropositive rates in cats tested for FPV, the 2 FCVs, FHV-1, and FIPV were 92.5%. 42.0%, 37.0%, 52.0%, and 14.0%, respectively. A low correlation (r = 0.466) was detected between the VNA titers of 2 FCV strains. The highest incidence and seropositive rate of FPV reveal that FPV is circulating in Korean cats. The low r-value between 2 FCVs suggests that a new feline vaccine containing the 2 kinds of FCVs is required.
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Viral infections are associated with a number of renal diseases in children resulting in significant morbidity and mortality worldwide. The role of viral infections in the pathogenesis of kidney disease has been largely based on clinical and histologic kidney findings in temporal association with a systemic viral infection and the demonstration of kidney cells infected with viral particles. Viral infections associated with productive viral replication in the kidney of immunocompromised hosts are of particular concern for children. Here, we will discuss the epidemiology, pathogenesis, outcomes, and treatment of the most relevant kidney diseases associated with viral infections in children, excluding those occurring in kidney transplant recipients, which are discussed elsewhere in this textbook (see chap. 84, Renal transplantation: infectious complications). Well-defined associations between a viral infection and kidney disease have been made for the hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV-1), hantaviruses, and the new coronavirus SARS-CoV-2. In children with immunodeficiency states, herpes viruses, polyomavirus, and adenovirus have been recognized to induce kidney diseases. The roles of other viruses in the pathogenesis of kidney diseases are not clearly defined and remain speculative. With increasing application of molecular techniques, the understanding of the role of viruses in the pathogenesis of kidney diseases is expected to increase. In addition, more specific antiviral treatments and vaccines are currently under development and are expected to improve the outcome of viral-mediated kidney diseases in children. © Springer Nature Switzerland AG 2009, 2016, 2022.
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Coinfection caused by bacteria, parasites, or viruses complicates almost all feline panleukopenia virus (FPV) infections. Pathogens that colonize the gastrointestinal tract, Clostridium perfingens, Clostridium piliforme, Cryptosporidium spp, Giardia spp, Tritrichomonas fetus, canine parvovirus type 2,Salmonella sp., feline coronavirus, feline bocavirus, and feline astrovirus were isolated in the presence of FPV infection. Complex mechanisms between viruses, bacteria, protozoa, and hosts contribute to the pathogenesis and severity of coinfection. Prompt and accurate diagnosis, vaccination precautions, and appropriate treatment play important roles in reducing morbidity and mortality. This article outlines the etiology, pathogenesis, diagnosis, prevention, and treatment that can help veterinarians and pet owners improve their knowledge of managing the diseases.
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Background: COVID-associated and vaccine-triggered myocarditis in young people have received much attention over the course of the pandemic due to early results of vaccination associated myocarditis. This may have led to an increase in myocarditis suspicions. In this study we wanted to examine the actual amount of COVID-associated myocarditis in ourtertiary center. Method(s): We included all cardiac MRIs performed in our institution for the indication of suspected myocarditis between 2020and 2022. We excluded patients with primary cardiomyopathy. We divided the patients into three groups: Group 1 had noCOVID infection or COVID-vaccine associated with their suspected myocarditis, group 2 had received a COVID vaccination prior to developing symptoms, group 3 had had an acute COVID infection and group 4 had a clinical diagnosis of Pediatric inflammatory multisystem syndrome (PIMS). Result(s): Overall, 28 patients had MRIs for suspected myocarditis performed at our center in the investigated time frame. They were 10 to 18 years of age (mean: 15.1 years). Symptoms included chest pain, fatigue, palpitations and reduction in exercise tolerance. Nineteen patients were in group one, 4 patients had symptoms associated with COVID vaccination, three had acute infection and two had a clinical diagnosis of PIMS. Late gadolinium enhancement (LGE) was found in 7 patients. None of these were in groups 2 or 3. Both patients with PIMS(n = 2) had myocarditis on biopsy but only one on MRI. Myocardial biopsy was performed in 8 patients. They showed myocarditis in 6 patients. Apart from the PIMS cases, none of them were associated with Corona infection or COVID vaccine. Three patients had parvovirus B19 on biopsy and one also had EBV. One of the PIMS patients also had HHV6. Theother four biopsies did not yield any viral DNA on PCR. Conclusion(s): Myocarditis associated with acute COVID infection or vaccination was not found in our cohort. Exercise intolerance or chest pain was not reliable indicators of cardiac causes. Even in the pandemic, coronavirus and COVID-19vaccines are unlikely causes of myocarditis. Most cases were associated with classic cardiotropic viruses. However, in cases of PIMS, cardiac involvement is likely and should be investigated accordingly.
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The oncolytic rodent protoparvoviruses (PVs) minute virus of mice (MVMp) and H-1 parvovirus (H-1PV) are promising cancer viro-immunotherapy candidates capable of both exhibiting direct oncolytic activities and inducing anticancer immune responses (AIRs). Type-I interferon (IFN) production is instrumental for the activation of an efficient AIR. The present study aims at characterizing the molecular mechanisms underlying PV modulation of IFN induction in host cells. MVMp and H-1PV triggered IFN production in semi-permissive normal mouse embryonic fibroblasts (MEFs) and human peripheral blood mononuclear cells (PBMCs), but not in permissive transformed/tumor cells. IFN production triggered by MVMp in primary MEFs required PV replication and was independent of the pattern recognition receptors (PRRs) Toll-like (TLR) and RIG-like (RLR) receptors. PV infection of (semi-)permissive cells, whether transformed or not, led to nuclear translocation of the transcription factors NFĸB and IRF3, hallmarks of PRR signaling activation. Further evidence showed that PV replication in (semi-)permissive cells resulted in nuclear accumulation of dsRNAs capable of activating mitochondrial antiviral signaling (MAVS)-dependent cytosolic RLR signaling upon transfection into naïve cells. This PRR signaling was aborted in PV-infected neoplastic cells, in which no IFN production was detected. Furthermore, MEF immortalization was sufficient to strongly reduce PV-induced IFN production. Pre-infection of transformed/tumor but not of normal cells with MVMp or H-1PV prevented IFN production by classical RLR ligands. Altogether, our data indicate that natural rodent PVs regulate the antiviral innate immune machinery in infected host cells through a complex mechanism. In particular, while rodent PV replication in (semi-)permissive cells engages a TLR-/RLR-independent PRR pathway, in transformed/tumor cells this process is arrested prior to IFN production. This virus-triggered evasion mechanism involves a viral factor(s), which exert(s) an inhibitory action on IFN production, particularly in transformed/tumor cells. These findings pave the way for the development of second-generation PVs that are defective in this evasion mechanism and therefore endowed with increased immunostimulatory potential through their ability to induce IFN production in infected tumor cells.
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Livedoid vasculopathy (LV) is a noninflammatory thrombotic disease caused by occlusion of dermal small vessels associated with systemic autoimmune disorders and coagulopathies. However, LV is often reported as being 'idiopathic', despite extensive investigation. We report a case of severe LV in an otherwise healthy 27-year-old woman, associated with parvovirus infection. The patient presented with a short history of a livedoid rash initially covering her torso, which spread to acral sites. Burning pains in the lower limb caused reduced mobility;systemically, she remained well and stable throughout. Examination revealed generalized acral skin pallor, livedoid patches of violet erythema and purpura with deep serpiginous ulcerations over extensor aspects of upper and lower limbs with a more broken/racemosa nonulcerated livedoid appearance on the trunk. On admission a transaminitisareas continued to ulcerate. Codeine was present with a creatine kinase of 1569 U L.1, but other blood test results were unremarkable including erythrocyte sedimentation rate, complement, cryoglobulins, antinuclear antibodies, antineutrophil cytoplasmic antibodies, extractable nuclear antigen, rheumatoid factor, myositis screen, antiphospholipid screen and thrombophilia screen. Parvovirus IgG and IgM were both positive and tested for, as the patient's young daughter had recently been diagnosed with 'slapped cheek disease'. Magnetic resonance imaging of the thighs showed a diffuse mild myositis;electromyography, nerve-conduction studies, barium swallow and computed tomography of the chest, abdomen and pelvis were all normal. An incisional skin biopsy was performed, which revealed a blood vessel with organizing (Solimani F, Mansour Y, Didona D et al. Development of severe pemphigus vulgaris following SARS-CoV-2 vaccination with BNT162b2. J Eur Acad Dermatol Venereol 2021;35: e649- 51) have been reported. The main proposed mechanisms for AstraZeneca vaccine-induced pemphigus could be a hyperimmune reaction in genetically predisposed individuals, with eventual formation of anti-desmoglein antibodies. An alternative hypothesis is that vaccine components could act as foreign antigens resulting in a cross-reaction with pemphigus antigens. The close association of COVID-19 vaccination with the acute onset of pemphigus in our patient, as well as exacerbations after subsequent vaccine administration, is more than coincidental. Considering the recent pandemic with COVID-19 and the widespread administration of the COVID-19 vaccine, continued observation and documentation of true adverse events is essential.
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Domestic and wild dogs of all ages and breeds are susceptible to Canine Coronavirus(CCoV) infections and be seen in T..rkiyeand amongst world. CCoV has recently been declared a zoonotic disease agent and the eighth pathogenic human coronavirus. This study was conducted on 143 naturally infected dogs with gastroenteritis which were not vaccinated against CCoV in T..rkiye in 2015-2020. The data of dogs were analyzed seroepidemiologically, clinicopathologically and statistically. CCOV antibodies in serum and CCOV antigens in stool were detected by ELISA and lateral immunochromatography. The rising CCoV IgG antibody titers were detected at all dogs and were as follows;<10 ng/L in 3 (2%), 10-20 ng/L in 18 (13%), 20-30 ng/L in 16 (11%), 30-40 ng/L in 14 (%10), 40-64 ng/L in 11 (8%) and >64 ng/L in 81 (81%) dogs. CCOV and Canine Parvovirus (CPV) antigen were detected together in the stool of the 41 (28.7%) dogs. As a result, it was concluded that the CCOV agent is in circulation among dogs living in T..rkiye. CCOV and CPV can cause co-infections and increased mortality. Although infection can be seen in dogs of all ages, it can be seen more frequently in dogs younger than 1 year of age, and especially in dogs younger than 6 months, and can cause enteritis, low hemoglobin, erythropenia, lymphopenia, leukopenia, thrombocytopenia, and hypoproteinemia.
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Guidelines on the use of PCR for fungal (ringworm), Parvovirus, Panleukopenia, and Covid-19 detection are discussed. Advantages of using PCR was also presented and emphasized its significance in assessing the context, history, clinical presentation and consequences of action (or inaction), as well as the laboratory result from tested animal patients.
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Introduction: Coronavirus disease 2019 (COVID-19) was described for the first time in December 2019. Symptoms include cough, fever, myalgia, headache, dyspnea, sore throat, diarrhoea, nausea, vomiting, and loss of smell or taste. Viral-induced myocarditis and pericarditis have been described in developed countries, and SARS-CoV-2 is cardiotropic. Pericarditis can mimic myocardial infarction (MI) in its presentation and ECG findings. Case report: A 46-year-old smoker with no previous medical condition presented with left-sided chest pain, sweating, trouble breathing, palpitations, and left-hand numbness. He denied having reduced effort tolerance, orthopnea, or paroxysmal nocturnal dyspnea. Three weeks earlier, he was infected with Covid-19 category 2A infection. On examination, he is haemodynamically stable, and his respiratory and cardiovascular exams were unremarkable. His ECG showed anterior ST elevation, and the bedside echocardiography showed no hypokinesia or pericardial effusion. High-sensitive cardiac troponin T reached 5000. The emergency team contacted the on-call cardiologist for primary PCI. After analysing the serial ECG and bedside echocardiography, he decided against primary PCI due to acute pericarditis. He was started on intravenous diclofenac acid and colchicine. His pain subsided after 3 days with NSAIDs and colchicine. He was reviewed back in the clinic and had a normal ECG and ECHO. Discussion(s): Pericardial disease caused by COVID-19 has been more common since the pandemic outbreak. Mycobacterium tuberculosis, Borrelia burgdorferi, Parvovirus B19, and Epstein-Barr virus are the most common infecting agents. Most cases of acute pericarditis in developing nations are due to tuberculosis infection. Nearly half of all patients who had previously recovered from COVID-19 infection have now presented with new cardiac MRI findings indicating pericardial involvement. Fibrosis and/or oedema may be linked to persisting active pericarditis following infection resolution, which may lead to short and long-term clinical consequences. Conclusion(s): The ST elevation in post-covid patients does not always signify myocardial infarction. Despite complaints and ECG findings, this could not be an acute myocardial infarction, for which clinicians should have a high index of suspicion.Copyright © 2023
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Viral infections are the culprit of many diseases, including inflammation of the heart muscle, known as myocarditis. Acute myocarditis cases have been described in scientific literature, and viruses, such as parvovirus B19, coxsackievirus B3, or more recently, SARS-CoV-2, were the direct cause of cardiac inflammation. If not treated, myocarditis could progress to dilated cardiomyopathy, which permanently impairs the heart and limits a person's lifespan. Accumulated evidence suggests that certain viruses may persist in cardiac tissue after the initial infection, which could open up the door to reactivation under favorable conditions. Whether this chronic infection contributes to, or initiates, cardiac damage over time, remains a pressing issue in the field of virus-induced heart pathology, and it is directly tied to patients' treatment. Previously, large case studies found that a few viruses: parvovirus B19, coxsackievirus, adenovirus, human herpesvirus 6, cytomegalovirus and Epstein-Barr virus, are most commonly found in human endomyocardial biopsy samples derived from patients experiencing cardiac inflammation, or dilated cardiomyopathy. SARS-CoV-2 infection has also been shown to have cardiovascular consequences. This review examines the role of viral persistence in cardiac inflammation and heart disease, and discusses its implications for patients' outcomes.
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In the period from August 2019 to August 2020, a total of nine cases of feline panleukopenia (FPV) were detected in two interrelated animal shelter facili-ties located in the district of Brezno, central Slovakia. All symptomatic cats were tested for the presence of parvovirus in the faeces using a rapid test with all tests being positive. The described animals ranged in age from three months to four years. Post-mortem examinations were performed on six dead animals and samples were taken to determine the presence of feline panleukopenia (FPV), canine parvovirus (CPV) variants 2a and 2b and feline coronavirus (FCoV) in the faeces using the quantitative polymerase chain reaction (qPCR). The examination of the samples was carried out at the Idexx Laboratiories in Leipzig, Germany. Despite intensive therapy, eight cats died and only one survived. This represents a treatment success rate of 11,2%. The findings of the qPCR tests showed positive results for FPV, CPV variants 2a and 2b and for FCoV in the faeces. These results suggest that co-infection with CPV-2 strains, FCoV and FPV in cats may significantly reduce the success rate of therapy for feline panleukopenia. Copyright © 2022, Schluetersche Verlagsgesellschaft mbH and Co.KG. All rights reserved.
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Parvovirus B-19 (B19V) is a common infection in children, occasionally complicated by ocular manifestations. In patients infected with severe acute respiratory syndrome virus (SARS-CoV-2), many cases of bacterial, fungal, and viral co-infections have been described. We report on a case of bilateral conjunctivitis, keratitis, and anterior uveitis that occurred in a patient co-infected by B19V and SARS-CoV-2. A young nurse developed, 20 days after the onset of asthenia and fever, a maculopapular rash and, in the following month, B19V-related arthritis. Shortly after a course of antibiotics and corticosteroids and the resolution of the arthritis, she began to complain of hearing loss and tinnitus. A polymerase chain reaction for SARS-CoV-2, previously negative, turned out positive; IgM for B19V decreased while IgG increased and antinuclear autoantibody and rheumatoid factor test results were positive. Ear symptoms disappeared after a course of prednisone, but eye burning and itching appeared 2 weeks after the coronavirus disease 2019 (COVID-19) positive swab. Bilateral conjunctivitis, keratitis, and anterior uveitis were diagnosed, which responded completely to a topical corticosteroid and mydriatic therapy. No relapses were observed in the following 12 months. The onset and progression of the symptoms, along with the laboratory findings, suggest a double pathogenesis of the ocular manifestations: keratitis and uveitis, along with the ear symptoms, seem to be the expression of an autoimmune reaction to B19V infection, while the conjunctivitis was likely related to direct infection of the conjunctiva by SARS-CoV-2.