Answer:
Incidence
Explanation:
Isaac will need to assess the incidence rate of HIV-infected adolescents for his research. This must be done because Isaac's research wants to gauge the speed with which this virus is spreading among teens. For this, Isaac must make a comparison between the existing number of patients who fit this case, with patients who fit the recent cases of incidence of the disease. That is, when conducting his research, he will want to examine the number of new cases, the incidence of the disease.
Some ideas for this are:
-Promotion of recycling
-Promotion of exercise and healthy eating
-Promote anti global warming tactics
-Promote anti drug use
For any of these, simply look up:
-A catchy phrase
-Bad effects if no action is done
-Good effects if action is done
It isn't heart healthy. That's something that's not true.