The molecular epidemiology of hepatitis A virus (HAV) was studied by analysing HAV strains recovered from environmental water samples over a 7 year period and strains recovered from patients with acute hepatitis over a 5 year period. A total of 54 samples of raw domestic sewage and 66 samples of river water were collected. HAV particles were concentrated and detected by nested RT-PCR. HAV infec...

Objective: Hepatitis A virus (HAV) is a common cause of acute hepatitis in developing countries. The aim this study to investigate the serology HAV infection tertiary care hospital Ankara, and review change epidemiology infection.Material Methods: Patients who were tested for anti IgG any reason other than during two years period, between October 1, 2018 2020, older 18 retrospectively analysed,...

conclusions the hav seroprevalence of 90.8% in the studied region may be representative of a highly endemic region of hav that does not require a vaccination program to be commissioned. results it was found that 455 out of 501 (90.8%) serum samples, including those of 211 (42.1%) men and 290 (57.9%) women, were positive for hav igg antibody. education level, age, marital status, and ethnicity w...

Objective: To investigate the magnitude and pattern of hepatitis viral markers in feco-orally transmitted acute viral hepatitis with their relation to age and sex. Methods: This prospective study was carried out in two groups of subjects including the study group of 600 patients with clinically suspected infectious hepatitis and control group of 200 patients showing no clinical evidence of acut...

The genetic characterization of hepatitis A virus (HAV) strains is commonly accomplished by sequencing subgenomic regions, such as the VP1/P2B junction. HAV genome is not extensively variable, thus presenting opportunity for sharing sequences of subgenomic regions among genetically unrelated isolates. The degree of misrepresentation of phylogenetic relationships by subgenomic regions is especia...

The prevalence of hepatitis A virus (HAV) infection is high in developing countries, in which low standards of sanitation promote the transmission of the virus. In Latin America, which is considered an area of high HAV endemicity, most HAV-positive individuals are infected in early childhood However recent studies have shown that prevalence rates are decreasing. Herein, we review the data on HA...

OBJECTIVES The purpose of this study was to investigate the seroprevalence of hepatitis A virus (HAV) and hepatitis E virus (HEV) in Korea during 2005. METHODS Study subjects were selected from across Korea using a stratified multistage probability sampling design, and HAV and HEV seroprevalence was compared on the basis of sex, age, and residency. A total of 497 rural and urban people aged 1...

Aim: Hepatitis A disease is a contagious liver infection caused by the hepatitis virus (HAV). This study aimed to decide seroprevalence in all age groups Kastamonu province, Turkey.
 Material and Method: The current analyzed anti-HAV antibodies test results of patients who applied Training Research Hospital for various reasons between 2018-2022. most up-to-date sent more than one serum sam...

BACKGROUND/AIMS In 2002, the first reported outbreak of hepatitis A virus (HAV) infection involving mostly intravenous drug users (IDU) occurred in Italy. We attempted a thorough evaluation of the outbreak, including epidemiological, clinical and virological analyses. METHODS We conducted an epidemiological investigation, including a case-control study, to identify the source and the modes of...