Agriculture & Biology
Hepatitis B virus
77%
seroprevalence
59%
epidemiology
52%
indigenous species
46%
infection
29%
Latin America
10%
Sub-Saharan Africa
10%
chronic hepatitis B
8%
health policy
7%
burden of disease
6%
liver neoplasms
6%
systematic review
6%
South Asia
5%
Central Africa
5%
Western European region
5%
East Asia
5%
Central European region
4%
morbidity
4%
South East Asia
4%
immunization
4%
risk factors
4%
vaccines
3%
death
3%
gender
2%
methodology
1%
Medicine & Life Sciences
Seroepidemiologic Studies
61%
Hepatitis B Surface Antigens
57%
Hepatitis B
53%
Epidemiology
43%
Infections
13%
Central America
12%
Far East
11%
Latin America
10%
Africa South of the Sahara
10%
Central Africa
6%
Chronic Hepatitis B
4%
North America
4%
Health Policy
4%
Liver Neoplasms
4%
Immunization
3%
Vaccines
3%
Fibrosis
3%
Systematic Reviews
3%
Morbidity
2%
Mortality
2%
Child
2%
Social Sciences
HBV
100%
epidemiology
57%
contagious disease
54%
Latin America
11%
South Asia
7%
Central Europe
7%
human being
7%
morbidity
7%
Western Europe
6%
health policy
6%
cancer
6%
mortality
5%
death
5%
literature
2%