Thema
epidemiology
Journal Article
261
Research Support, Non-U.S. Gov't
137
virus classification
88
coronavirus
40
RNA, Viral
35
SARS coronavirus
35
Epidemiology
28
pandemics
28
Antibodies, Viral
23
Virology
22
infection
22
evolution
21
pathogenesis
20
immune responses
19
COVID-19
17
genetic variability
16
Review
15
endemic infection
14
DNA, Viral
13
Viral infections
13
Letter
12
Observational Study
12
blood
12
children
12
disease control
12
hepatitis C virus
12
respiratory tract
12
seasonal incidence
12
Pediatrics
11
SARS-CoV-2
11
Immunoglobulin G
10
genotype
10
hepatitis B virus
10
immunity/immunization
10
influenza virus
10
norovirus
10
Immunoglobulin M
9
gastroenteritis
9
human papillomavirus
9
prevalence
9
respiratory viruses
9
shedding
9
Hepatitis
8
dengue virus
8
human metapneumovirus
8
influenza
8
mutation
8
research and analysis methods
8
respiratory syncytial virus
8
mehr ...