Disease-causing viruses engage their hosts in ongoing arms races: positive selection for antiviral genes increases host fitness and survival, and viruses in turn select for mutations that counteract…
Researchers have found that HIV vaccines sometimes lead to increased rates of infection rather than immunization. A vaccine trial in monkeys now suggests an explanation for this.
There have been numerous studies showing how dogs can benefit human health, by sniffing out cancer, for example. Now it is time for cats to shine, as researchers say they may hold the key to a human immunodeficiency virus (HIV) vaccine.