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 vaccineA vaccine-derived strain of poliovirus that has spread in recent years is serious but it can be tackled with an existing vaccine, according to a new study published today in the New England Journal of Medicine.Vaccine-derived polioviruses can emerge on rare occasions in under-immunized populations, when the attenuated virus contained in a vaccine mutates and...

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, according to a study published yesterday in the New England Journal of Medicine.Nigeria is one of only four countries in the world where polio has yet to be eliminated and 82% of global cases so far this year have been in Nigeria. Polio is highly infectious and it primarily affects 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. Previously, scientists had estimated the origin at around 1930. AIDS wasn't formally recognized until 1981, when it got the attention of public health officials in the United States. The new result is "not a monumental...