... structure of, 63mutations in, 40, 67strains of, 68–69HIV infectionacute stage of, 30clinical latency and, 32–33early signs of, 29–30elimination of, 45–46risk factors of, 24–25seroconversion and, ... epidemic in, 59, 68infant formula, 57–58infected persons, number of See rates of infectionIndex107infections, opportunistic, 14,34International AIDS VaccineInitiative (IAVI), 62, 71intravenous ... 30–31symptoms of, 6, 32vaccines and, 64–65see also AIDS; rates of infectionHIV transmission, 26–28AZT and, 39during clinical latency, 32drug treatments and, 47methods of, 8, 24–25MTCT and, 56–59preventing,...