Keyphrases
Non-specific Protection
100%
Randomized Controlled Trial
100%
COVID-19 Pandemic
100%
Bacillus Calmette
100%
Healthcare Workers
100%
Health Protection
100%
Confidence Interval
33%
COVID-19
33%
Hazard Ratio
33%
Absenteeism
33%
All-cause Hospitalization
22%
Infectious Diseases
22%
Clinical Trial Registry
11%
Revaccination
11%
Overall Effect
11%
Credibility Intervals
11%
Placebo Groups
11%
Main-secondary
11%
Group Risk
11%
Hospitalization Risk
11%
EudraCT
11%
Placebo
11%
Risk Ratio
11%
Number of Days
11%
EU Clinical Trials Register
11%
Risk Reduction
11%
Healthy Cohort
11%
Pharmacology, Toxicology and Pharmaceutical Science
Disease
100%
Coronavirinae
100%
Randomized Controlled Trial
100%
Bacilli
100%
Pandemic
100%
Infection
33%
Placebo
22%
Clinical Trial
22%