Thema
Journal Article
74
Research Support, Non-U.S. Gov't
54
Research Support, N.I.H., Extramural
30
COVID-19
22
influenza
17
SARS-CoV-2
12
Biology
9
viruses
9
570
8
respiratory infections
8
Antibodies, Viral
7
Comparative Study
7
Influenza
6
Influenza Vaccines
6
epidemiology
6
transmission
6
zoonoses
6
Hong Kong
5
coronavirus disease
5
public health
5
severe acute respiratory syndrome coronavirus 2
5
COVID-19 Vaccines
4
Observational Study
4
Systematic Review
4
incubation period
4
influenza A(H7N9)
4
reproductive number
4
Analysis
3
Dose fractionation
3
Epidemiology
3
Historical Article
3
Influenza A virus
3
Meta-Analysis
3
Public health
3
Randomized Controlled Trial
3
Review
3
Susceptibility
3
Systematic review
3
T cell-mediated immunity
3
Vaccine
3
surveillance
3
2019 novel coronavirus disease
2
20O93L6F9H
2
Avian influenza A(H7N9)
2
Care and treatment
2
China
2
Clinical diagnosis
2
Clinical prediction rule
2
Dosage and administration
2
Epidemics
2
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