Tom is 45 years old with no known health problems. He answered "no" to all the PAR-Q questions, but experiences shortness of breath with mild exercise and occasional dizziness. According to the American College of Sports Medicine, what is his exercise risk category?A. low riskB. moderate riskC. normal riskD. high risk

If scientists are trying to use what they know about hsv to devise a means of protecting other people from being infected, which of the following would have the best chance of lowering the number of new cases of infection? a) vaccinate of all persons with preexisting cases of hsvb) interfere with new viral replication in preexisting cases of hsvc) treat hsv lesions to shorten the breakoutd) educate people about avoiding sources of infection