Search results for "virus"
showing 10 items of 5024 documents
Does Physical Activity Matter for the Mental Health of University Students during the COVID-19 Pandemic?
2020
Research indicates that university and college students are at higher risk of experiencing mental health problems than other populations. This study aims to examine the relationship between Physical Activity (PA) and the mental health of Ukrainian university students during the Corona Virus Disease 2019 (COVID-19) pandemic lockdown. The conventional sample consisted of 1512 students from 11 Ukrainian universities, with a mean age of 20 years (M = 20.06, SD = 3.05) and 69% of whom were female. The cross-sectional online survey was disseminated through the most popular social media channels in Ukraine (i.e., Facebook, Viber, Telegram) and included the Generalized Anxiety Disorder (GAD-7) scal…
Parvovirus B19-Associated Microvesicular Eruption
2015
We report on a 3-year-old girl with a microvesicular generalized rash in whom primary infection by parvovirus B19 was demonstrated by seroconversion. To our knowledge, this is the first instance of an eruption arising from parvovirus B19 with this peculiar clinical pattern.
Retreatment with pegylated interferon plus ribavirin of chronic hepatitis C non-responders to interferon plus ribavirin: A meta-analysis
2009
Efficacy of retreatment with pegylated interferon (PEG-IFN) plus ribavirin of non-responders to standard or pegylated IFN plus ribavirin has been assessed in various studies, but sustained virologic response (SVR) rates are variable and factors influencing efficacy and tolerability still remain incompletely defined. We aimed to focus on SVR rates and to identify factors influencing them in this meta-analysis.MEDLINE as well as a manual search were used. Studies were included if they were controlled or uncontrolled trials, if they had been published as full-length papers and if they included non-responders to standard or pegylated IFN and ribavirin therapy. Fourteen trials were included in t…
The neglected hepatitis C virus genotypes 4, 5 and 6: an international consensus report
2009
Abstract Hepatitis C virus (HCV) genotypes 4, 5 and 6 represent20% of all HCV cases worldwide. HCV-4 is mainly seen in Egypt, where it represents 90% of all HCV cases. Antischistosomal therapy was the main cause of contamination there, followed by procedures performed by informal providers and traditional healers such as dental care, wound treatment, circumcision, deliveries, excision and scarification. It is also highly prevalent in sub-Saharan Africa and in the Middle East. In Europe, its prevalence has recently increased particularly among intravenous drug users and in immigrants. HCV-5 is mainly found in South Africa, where it represents 40% of all HCV genotypes, but four pockets of HCV…
Resistance-associated substitutions in patients with chronic hepatitis C virus genotype 4 infection
2020
Data on the prevalence of resistance-associated substitutions (RASs) and their implications for treatment with direct-acting antivirals (DAAs) are sparse in European patients with HCV genotype 4. This study investigated RASs before and after DAA failure in different genotype 4 subtypes and evaluated retreatment efficacies. Samples of 195 genotype 4-infected patients were collected in the European Resistance Database and investigated for NS3, NS5A and NS5B RASs. Retreatment efficacies in DAA failure patients were analysed retrospectively. After NS5A inhibitor (NS5Ai) failure, subtype 4r was frequent (30%) compared to DAA-naive patients (5%) and the number of NS5A RASs was significantly highe…
Molecular Surveillance of HIV-1 in Madrid, Spain: a Phylogeographic Analysis ▿
2011
ABSTRACT The molecular epidemiology of HIV-1 is constantly changing, mainly as a result of human migratory flows and the high adaptive ability of the virus. In recent years, Spain has become one of Europe's main destinations for immigrants and one of the western European countries with the highest rates of HIV-positive patients. Using a phylogeographic approach, we have analyzed the relationship between HIV-1 variants detected in immigrant and native populations of the urban area of Madrid. Our project was based on two coincidental facts. First, resistance tests were extended to naïve and newly diagnosed patients, and second, the Spanish government legislated the provision of legal status t…
Sequential evolution of genotype GII.4 norovirus variants causing gastroenteritis outbreaks from 2001 to 2006 in Eastern Spain.
2008
Noroviruses are the most common cause of outbreaks of viral gastroenteritis worldwide. Norovirus outbreaks were surveyed in Catalonia and the region of Valencia (Eastern Spain) between January 2001 and December 2006 as part of the European Union funded network "Food-borne viruses in Europe". During this time the etiology and epidemiological features of 194 outbreaks of acute non-bacterial gastroenteritis were investigated and norovirus was identified as causing 169 (87.1%) of them. Molecular epidemiology of viral strains was studied by RT-PCR and sequencing part of the RNA polymerase gene in ORF1 from 153 outbreak strains. The most commonly identified norovirus genotype was GII.4 (71.9% of …
Association between environmental pollution and prevalence of coronavirus disease 2019 (COVID-19) in Italy
2020
AbstractThe novel coronavirus disease 2019 (COVID-19) has recently been upgraded to a pandemic by the World Health Organization due to the alarming levels of spread and severity. Since several lines of evidence also attest that Lombardy region has an extraordinarily high level of environmental pollution, we aimed to explore the potential epidemiological association between the number of cases of COVID-19 and environmental pollution in Italy. Data on environmental pollution in Italy were retrieved from the 2019 annual report of the organization Legambiente (League for the Ambient). The adjusted correlation between the number of days in which environmental pollutants exceeded established limi…
Hepatitis B virus in diabetic patients
1980
The presence of HBV markers was determined in 149 serum samples obtained from diabetic patients and was compared with a normal population. Diabetics have the same incidence of HBsAg but significantly higher anti-HBc antibodies. These differences were seen in the group of diabetics on oral hypoglycemic therapy. These results cannot yet be explained.
Antibody Pattern of HCV Infection and Hepatocellular Carcinoma in Italy: A Case Control Study
1994
The association of hepatitis C virus (HCV) infection with hepatocellular carcinoma (HCC) and the presence of a specific antibody pattern was assessed by means of a case-control study conducted in Italy on 65 consecutive newly diagnosed HCC cases and 99 sex- and age-matched control patients with chronic nonhepatic disease. The prevalences of antibody to HCV (anti-HCV) and hepatitis B surface antigen (HBsAg) observed were 66.2% and 24.6%, respectively. The relative risk for the association of each of the two markers with HCC, as calculated by multiple logistic analysis, was 26.9 (95% confidence intervals (CI): 9.9–72.5) for anti-HCV and 11.4 (95% CI: 3.1–41.1) for HBsAg. Thus, they constitute…