Latest OPV AIDS hypothesis Stories
A vaccine-derived strain of poliovirus that has spread in recent years is serious but it can be tackled with an existing vaccine.
A recently introduced polio vaccine is four times more effective at protecting children than previous vaccines and has the potential to eradicate type 1 polio in Nigeria if it reaches enough children.
NEW YORK - The AIDS virus has been circulating among people for about 100 years, decades longer than scientists had thought, a new study suggests. Genetic analysis pushes the estimated origin of HIV back to between 1884 and 1924, with a more focused estimate at 1908.
- In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.