Tommy's elementary school teacher was pleased to discover that he knew that the virus that causes AIDS is called ________.
a. HSV-1
b. HIV
c. HPV
d. HSV-2
Question 2
In Erica's health class, she learned that the incubation period for hepatitis B is ________.
a. 8 to 10 months
b. 1 to 4 months
c. 2 to 10 months
d. 6 to 8 months