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Keyphrases
Vaccine Effectiveness
100%
Self-controlled Case Series
92%
Self-controlled Case Series Method
71%
Self-controlled Case Series Study
56%
COVID-19
54%
Case Series Analysis
51%
Influenza Vaccine Effectiveness
50%
Confidence Interval
47%
Primary Care
44%
Incidence Rate
39%
Vaccination
38%
Influenza
36%
United Kingdom
33%
A(H1N1)pdm09
30%
H3N2
29%
Relative Incidence
29%
Influenza Vaccine
27%
Hospitalization
25%
Observation Period
24%
Case Series Models
24%
COVID-19 Vaccine
23%
Serosurvey
22%
European Studies
22%
Influenza Vaccination
21%
Infectious Diseases
21%
Trihalomethanes
20%
Vaccine Safety
20%
All Ages
20%
Test-negative Design
20%
Immunosuppressed
19%
Euroimmun
19%
Seroprevalence
17%
Influenza-like Illness
17%
Live Attenuated Influenza Vaccine
17%
SARS-CoV-2 Antibodies
17%
Influenza A
16%
Sentinel Network
16%
COVID-19 Vaccination
16%
Age Groups
16%
Simulation Study
15%
Acute Myocardial Infarction
15%
Time Series Data
15%
Chloroform
15%
Aging Effect
13%
Antibody Response
13%
Immune Response
13%
Europe
12%
Risk of Death
12%
Response Effectiveness
12%
Respiratory Syncytial Virus
12%
Medicine and Dentistry
Primary Health Care
56%
Influenza Vaccine
55%
Infection
39%
COVID-19
39%
Influenza A Virus (H3N2)
30%
Severe Acute Respiratory Syndrome Coronavirus 2
30%
Cohort Analysis
22%
Influenza A
20%
Influenza A Virus (H1N1)
19%
COVID-19 Vaccine
18%
Influenza Vaccination
17%
Influenza A (H1N1)
17%
Virus
17%
Respiratory Tract Infection
16%
High Risk Population
12%
Influenza B
12%
Gene Linkage
11%
Influenza A (H3N2)
11%
Apoplexy
10%
Reinfection
10%
COVID-19 Vaccination
10%
Diseases
10%
Acute Heart Infarction
10%
Arrhythmia
10%
Heart Arrest
10%
Hemorrhagic Fever with Renal Syndrome
10%
Antibody Response
9%
Hemagglutination Inhibition
9%
Surveillance System
8%
Emergency Care
7%
COVID-19 Mortality
7%
Meta-Analysis
7%
Odds Ratio
7%
Messenger RNA
7%
General Medicine
7%
Systematic Review
7%
mRNA Vaccine
6%
Immune Response
6%
Human Respiratory Syncytial Virus
6%
Booster Dose
6%
Sentinel Surveillance
6%
Evaluation Study
6%
Bleeding
6%
Virus Infection
6%
Myocarditis
6%
Reverse Transcription Polymerase Chain Reaction
6%
Chloroform
5%
Logistic Regression Analysis
5%
Disease Surveillance
5%
Flu Like Syndrome
5%
