Thema
Journal Article
462
Research Support, Non-U.S. Gov't
118
Review
105
Saudi Arabia
102
COVID-19
68
Editorial
64
Letter
59
Hajj
58
MERS-CoV
54
Epidemiology
30
Coronavirus
28
Anti-Bacterial Agents
26
Case Reports
26
Antiviral Agents
25
Comment
23
SARS-CoV-2
22
Biology
19
MERS
19
Infections
18
Meningococcal Vaccines
17
mass gathering
17
Health sciences
16
Middle East
16
Public health
16
Biological sciences
14
Microbiology
14
coronavirus
14
Medical conditions
13
Umrah
13
Antibodies, Viral
12
Immunization
12
Mass gathering
12
Microorganisms
12
Middle East respiratory syndrome coronavirus
12
Surveillance
12
Viruses
12
Diseases
11
Eastern Mediterranean Region
11
Health and wellness
11
Hospitals
11
Influenza
11
Medical sciences
11
Mortality
11
Systematic Review
11
COVID-19 Vaccines
10
Health care industry
10
Randomized Controlled Trial
10
Respiratory diseases
10
Vaccines
10
Burden of disease
9
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