The urgency of the search for a vaccine against HIV stems from the AIDS-related death toll of over 25 million people since 1981. Indeed, in 2002, AIDS became the primary cause of mortality due to an infectious agent in Africa.
As the dust settles from last week's surprising announcement that an HIV vaccine combination may protect some people from the virus, scientists are talking about what else the vaccine trial might tell them.
Rice that has been genetically modified to produce pollen proteins and then release them in the gut during digestion is ready for human trials, say its creators.
The first inhalable vaccine for measles is moving toward clinical trials next year in India, where the disease still sickens millions of infants and children and kills almost 200,000 annually, according to researchers.
