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Epidemiological factors affecting hepatitis a seroprevalence in childhood in a developing country
Sevin Altınkaynak1, Mukadder Ayşe Selimoğlu2, Vildan Ertekin3
1Sakarya University, Faculty of Medicine, Department of Pediatrics, Sakarya, Turkey.
Insights
Hepatitis A virus (HAV) infection is highly prevalent in Eastern Turkish children, with over 59% testing positive. Key risk factors include older age, rural living, and lower socioeconomic status, highlighting a critical need for increased HAV vaccination.
Area of Science:
- Virology
- Epidemiology
- Pediatrics
Background:
- Hepatitis A virus (HAV) poses a significant public health concern, particularly in pediatric populations.
- Understanding the prevalence and associated socio-epidemiological factors of HAV is crucial for targeted intervention strategies.
Purpose of the Study:
- To determine the prevalence of Hepatitis A virus (HAV) infection in children aged 0-18 years in Eastern Turkey.
- To identify socio-epidemiological factors influencing HAV infection rates within this demographic.
Main Methods:
- A cross-sectional study was conducted involving 226 children aged 0-18 years.
- Hepatitis A virus immunoglobulin G (IgG) seropositivity was assessed using ELISA.
- Data on age, gender, settlement area, socioeconomic status, and vaccination history were collected.
Main Results:
- The overall prevalence of HAV IgG seropositivity was 59.7% among the studied children.
- HAV prevalence increased with age and was significantly higher in children from rural areas and lower socioeconomic backgrounds.
- Vaccination rates were very low (less than 1%), with no significant difference in seropositivity between vaccinated and unvaccinated children.
Conclusions:
- Hepatitis A virus infection is highly prevalent in children in Erzurum, Eastern Turkey.
- Age, rural settlement, and lower socioeconomic status are significant predictors of HAV infection.
- The low rate of HAV vaccination underscores the need for public health initiatives to improve immunization coverage.
Objective:
The aim of this study was to determine the prevalence rate of hepatitis A virus (HAV) and the socio-epidemiological factors affecting HAV among children aged 0-18 years in Eastern Turkey.
Materials And Methods:
The study sample consisted of 226 children aged 0-18 years who were registered at the Pediatrics Department of Atatürk University Medical Faculty for any reason except jaundice between January and May 2002. The presence of anti-HAV immunoglobulin G (IgG) in the children was determined by ELISA.
Results:
The percentage of HAV IgG seropositivity among the 226 children was 59.7%. We detected an increase of HAV prevalence with age. The prevalence of HAV did not differ significantly in relation to gender. HAV prevalence was higher in children of rural areas than in children of urban and suburban areas (P<0.001). Only two of the 226 children had received the HAV vaccine. The percentage of HAV IgG seropositivity of unvaccinated children was 59.3%. HAV seroprevalence was higher in subjects who had a history of jaundice (84.6%) than in those who did not (58.2%). An increase in HAV prevalence was observed with a decrease in socio-economic status (P<0.001).
Conclusion:
HAV prevalence was markedly high, but HAV vaccination of children was very low in Erzurum. The socio-demographic factors of age, settlement area, and socio-economic status of family were significantly associated with HAV prevalence.
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