The graph gives the number of varicella (chicken pox) cases between 1972 and 2011. varicella is an infectious disease caused t
disease causes rash, itching, and fever in patients. the varicella vaccine was introduced in 1995. what can you conclude about t
varicella (chickenpox) cases
1972-2011
250,000+
200,000+
the varicella vaccine was
introduced in 1995.
150,000+
cases of varicella
100,000+
*
cases of varicella
50,000