Scientists at the national institutes of health are collaborating with the government of thailand to test the effectiveness of a new vaccine in preventing hiv infection among prostitutes. Half the women receive the experimental vaccine and half receive an injection of salt water, and the women are then monitored for development of hiv infection. What kind of epidemiologic study is this?
Answers
Answered by
0
Answer:
It is the study of health and disease study which they do experiment to find a cure for a particular disease.
Similar questions