Behaviour change communication (BCC) remains a central component of the interventions used in the fight against malaria in Ghana. However, there is limited evidence of its effectiveness. This study evaluated the effects of BCC strategies on knowledge (symptoms, causes and prevention) and overall knowledge of malaria among Ghanaian women aged…

Estimates of the reproductive rate of infection with the human immunodeficiency virus (HIV), obtained through a Bernoulli process model, indicate that decreasing the infectivity of the virus, through the use of condoms, for example, is more effective at reducing the infection rate than is limiting the number of sexual partners. (SLD)

Biomedical, logistic, economic, social, and psychosocial issues related to the successful distribution and use of a vaccine for human immunodeficiency virus (HIV) are reviewed. A mathematical model is introduced as an aid in conceptualizing these issues. The HIV vaccine should be seen as an adjunct to behavioral modification. (SLD)