infectious disease and population Flashcards
1
Q
define R0 value
A
the rate of infection from one infected person to other(s)
2
Q
what would and R0 value of 2 indicate?
A
that one infected person will infect 2 healthy people
3
Q
define herd immunity
A
when enough of a populate is immune to stop the spread of the disease from an infected person to a healthy but non-immune person
4
Q
is the critical value for the achievement of herd immunity constant
A
NO. it varies depending on the population, environment and type of disease
