Epidemiology Flashcards
1
Q
What is R0?
A
Average number of cases of an infectious disease
2
Q
What is a serial interval?
A
Time from illness onset in the primary case to illness onset in the secondary case
3
Q
What is vaccine efficacy?
A
The percentage reduction of disease cases in a vaccinated group of people compared to an unvaccinated group
4
Q
What is the herd immunity threshold?
A
The percentage of the population that needs to become immune to an infectious disease so that people without immunity aren’t likely to interact with an infected person and become infected
