Tag: dead vaccine
Polio: The long road to eradicating polio
“It is estimated that the virus from the vaccine will need to circulate for about a year or a year and a half to reverse the mutations”Kathrin Keeren, Head of…
“It is estimated that the virus from the vaccine will need to circulate for about a year or a year and a half to reverse the mutations”Kathrin Keeren, Head of…