Which technique for evaluating health risks associated with body weight is based on the concept that a person's weight should be proportional to his or her height? (a) body mass index(b) underwater weighing(c) skinfold measurement(d) bioelectrical impedance analysis

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