Extensive research has been conducted on the SARS-CoV-2 virus in association with various infectious diseases to understand the pathophysiology of the infection and potential co-infections. In tropical countries, exposure to local viruses may alter the course of SARS-CoV-2 infection and coinfection. Notably, only a portion of the antibodies produced against SARS-CoV-2 proteins demonstrate neutralizing properties, and the immune response following natural infection tends to be temporary. In contrast, long-lasting IgG antibodies are common after dengue virus infections. In cases where preexisting antibodies from an initial dengue virus infection bind to a different dengue serotype during a subsequent infection, there is a potential for antibody-dependent enhancement (ADE) and the formation of immune complexes associated with disease severity. Both SARS-CoV-2 and dengue infections can result in immunodeficiency. Viral proteins of both viruses interfere with the host's IFN-I signaling. Additionally, a cytokine storm can occur after viral infection, impairing a proper response, and autoantibodies against a wide array of proteins can appear during convalescence. Most of the reported autoantibodies are typically short-lived. Vaccines against both viruses alter the immune response, affecting the course of viral infection and enhancing clearance. A comprehensive analysis of both viral infections and pathogenicity is revisited to prevent infection, severity, and mortality.
- MeSH
- COVID-19 * imunologie virologie MeSH
- dengue * imunologie virologie MeSH
- koinfekce imunologie virologie MeSH
- lidé MeSH
- protilátky virové * imunologie MeSH
- SARS-CoV-2 * imunologie MeSH
- virus dengue * imunologie MeSH
- zvýšená infektivita v přítomnosti protilátek imunologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
BACKGROUND & AIMS: Robust data on hepatocellular carcinoma (HCC) incidence among HIV/hepatitis B virus (HBV)-coinfected individuals on antiretroviral therapy (ART) are needed to inform HCC screening strategies. We aimed to evaluate the incidence and risk factors of HCC among HIV/HBV-coinfected individuals on tenofovir disoproxil fumarate (TDF)-containing ART in a large multi-cohort study. METHODS: We included all HIV-infected adults with a positive hepatitis B surface antigen test followed in 4 prospective European cohorts. The primary outcome was the occurrence of HCC. Demographic and clinical information was retrieved from routinely collected data, and liver cirrhosis was defined according to results from liver biopsy or non-invasive measurements. Multivariable Poisson regression was used to assess HCC risk factors. RESULTS: A total of 3,625 HIV/HBV-coinfected patients were included, of whom 72% had started TDF-containing ART. Over 32,673 patient-years (py), 60 individuals (1.7%) developed an HCC. The incidence of HCC remained stable over time among individuals on TDF, whereas it increased steadily among those not on TDF. Among individuals on TDF, the incidence of HCC was 5.9 per 1,000 py (95% CI 3.60-9.10) in cirrhotics and 1.17 per 1,000 py (0.56-2.14) among non-cirrhotics. Age at initiation of TDF (adjusted incidence rate ratio per 10-year increase: 2.2, 95% CI 1.6-3.0) and the presence of liver cirrhosis (4.5, 2.3-8.9) were predictors of HCC. Among non-cirrhotic individuals, the incidence of HCC was only above the commonly used screening threshold of 2 cases per 1,000 py in patients aged >45 years old at TDF initiation. CONCLUSIONS: Whereas the incidence of HCC was high in cirrhotic HIV/HBV-coinfected individuals, it remained below the HCC screening threshold in patients without cirrhosis who started TDF aged <46 years old. LAY SUMMARY: We investigated the incidence of hepatocellular carcinoma in HIV/hepatitis B virus-coinfected individuals from a large multi-cohort study in Europe. Over 32,673 patient-years, 60 individuals (1.7%) developed hepatocellular carcinoma. The incidence of hepatocellular carcinoma remained low in patients without cirrhosis, who started on tenofovir disoproxil fumarate when aged <46 years old.
- MeSH
- dospělí MeSH
- hepatitida B - antigeny povrchové analýza MeSH
- hepatitida B farmakoterapie virologie MeSH
- hepatocelulární karcinom epidemiologie MeSH
- HIV * MeSH
- incidence MeSH
- koinfekce farmakoterapie virologie MeSH
- látky proti HIV terapeutické užití MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory jater epidemiologie MeSH
- následné studie MeSH
- oportunní infekce doprovázející AIDS farmakoterapie virologie MeSH
- prospektivní studie MeSH
- tenofovir terapeutické užití MeSH
- virus hepatitidy B imunologie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Koi sleepy disease (KSD) is a disease with increasing importance in global common carp aquaculture. Despite the fact that carp edema virus (CEV) is most likely the causative agent of KSD, the disease often presents itself as multifactorial with several parasites and bacteria species present on gills, skin or in internal organs. Therefore, in this study, we analysed and presented initial results on an interaction of flavobacteria and CEV in the development of clinical KSD in carp suffering from proliferative gill disease. We examined selected field samples from Germany and Hungary and confirmed the presence of CEV and flavobacteria co-infections in subset of the samples. In several infection experiments, we studied the transfer and dynamics of both infections. Furthermore, we analysed which Flavobacterium species could be isolated from KSD-affected fish and concluded that Flavobacterium branchiophilum is a possible copathogen. Antibiotic treatment experiments showed that CEV seems to be the primary pathogen causing an insult to the gills of carp and by these enabling other pathogens, including F. branchiophilum, to establish co-infections. Despite the fact that F. branchiophilum co-infection is not required for the development of clinical KSD, it could contribute to the pathological changes recorded during the outbreaks.
- MeSH
- Flavobacterium fyziologie MeSH
- infekce bakteriemi čeledi Flavobacteriaceae farmakoterapie mikrobiologie veterinární MeSH
- infekce vyvolané poxviry farmakoterapie mikrobiologie veterinární MeSH
- kapři * MeSH
- koinfekce farmakoterapie mikrobiologie veterinární virologie MeSH
- nemoci ryb farmakoterapie mikrobiologie virologie MeSH
- Poxviridae účinky léků fyziologie MeSH
- žábry mikrobiologie patologie virologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Maďarsko MeSH
- Německo MeSH
We are reporting the first case of lymphogranuloma venereum in women in East-Central Europe. A 22-year-old heterosexual woman attended our department of venereology. She complained about a burning sensation in the urethra and vaginal discharge. Many tests were performed, and lymphogranuloma venereum, syphilis, gonorrhea, chlamydial urethritis and cervicitis, genital herpes, genital warts, and hepatitis C were diagnosed. Lymphogranuloma venereum was originally endemic in tropical and subtropical areas, but since 2003, outbreaks of this infection have been reported in North America, Europe, and Australia in men who have sex with men (MSM) community. To date, all cases of lymphogranuloma venereum in the Czech Republic appeared in men, predominantly in HIV-positive MSM. There are not many evidences about lymphogranuloma venereum (LGV) in women in developed countries. This report underlines the need for awareness of lymphogranuloma venereum in women among gynecologists, venereologists, and other physicians not only in Western Europe, but across all European countries.
- MeSH
- Chlamydia trachomatis klasifikace genetika izolace a purifikace MeSH
- dospělí MeSH
- HIV infekce virologie MeSH
- koinfekce mikrobiologie virologie MeSH
- lidé MeSH
- lymphogranuloma venereum mikrobiologie MeSH
- mladý dospělý MeSH
- uretra mikrobiologie MeSH
- vagina mikrobiologie MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladý dospělý MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- kazuistiky MeSH
- Geografické názvy
- Česká republika MeSH
- MeSH
- antituberkulotika terapeutické užití MeSH
- HIV infekce komplikace farmakoterapie epidemiologie MeSH
- hodnocení výsledků pacienta * MeSH
- Kaplanův-Meierův odhad MeSH
- koinfekce farmakoterapie mikrobiologie virologie MeSH
- kontrola infekčních nemocí normy MeSH
- lidé MeSH
- multirezistentní tuberkulóza komplikace farmakoterapie epidemiologie MeSH
- prevalence MeSH
- přežití bez známek nemoci MeSH
- proporcionální rizikové modely MeSH
- regresní analýza MeSH
- riziko MeSH
- sběr dat MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- dopisy MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Evropa MeSH
- Německo MeSH
- MeSH
- antivirové látky farmakokinetika terapeutické užití MeSH
- chronická hepatitida C farmakoterapie MeSH
- Hepacivirus účinky léků MeSH
- HIV infekce farmakoterapie komplikace MeSH
- inhibitory proteas farmakokinetika terapeutické užití MeSH
- klinické zkoušky jako téma MeSH
- koinfekce farmakoterapie virologie MeSH
- kombinovaná farmakoterapie MeSH
- látky proti HIV farmakokinetika terapeutické užití MeSH
- lékové interakce MeSH
- lidé MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
Our study has been aimed at demonstrating the main role of viruses in the aetiology of acute gastroenteritis in children less than 5 years old and at pointing out the diagnostic potential of electron microscopy in the diagnosis of viral gastroenteritis. A prospective study was conducted to analyse the aetiology of diarrhoeal diseases in children less than 5 years of age admitted to the Department of Infectious Diseases between September 2006 and December 2008. All children were tested by faecal culture, latex agglutination and electron microscopy. A total of 832 children were included in the study. An aetiological agent was detected in 788 children (94.6 %). A bacterial aetiology was found in 22 (2.6 %) children and bacterial-viral co-infection was found in 146 (17.6 %) patients. The most frequent causative agents of gastroenteritis in children were viruses, which were detected in 620 (74.5 %) patients. The main causes of viral gastroenteritis were rotaviruses (detected in 410 children), followed by caliciviruses (42), coronaviruses (28), adenoviruses (19) and astroviruses (14). Dual viral infections were detected in 107 children, with rotavirus-calicivirus co-infection being the most common. Electron microscopy proved to be a more sensitive method in comparison with the latex agglutination test for the diagnosis of rotaviruses and adenoviruses. The major role of viruses in diarrhoeal diseases among children under 5 years of age in the Czech Republic has been confirmed. The diagnostic potential of electron microscopy, particularly in small outbreaks of gastroenteritis, was clearly shown.
- MeSH
- bakteriální infekce diagnóza mikrobiologie MeSH
- elektronová mikroskopie metody MeSH
- feces virologie MeSH
- gastroenteritida diagnóza virologie MeSH
- klinické laboratorní techniky metody MeSH
- koinfekce diagnóza mikrobiologie virologie MeSH
- kojenec MeSH
- latex fixační testy MeSH
- lidé MeSH
- předškolní dítě MeSH
- prospektivní studie MeSH
- virologie metody MeSH
- virové nemoci diagnóza MeSH
- Check Tag
- kojenec MeSH
- lidé MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
