31. The method produced a live-virus vaccine , which had serious side effects and killed one in every million people inoculated. 32. MF59 is the first oil-in-water influenza vaccine adjuvant to be commercialized in combination with a seasonal influenza virus vaccine . 33. A " nef "-deleted virus vaccine has not been tried in humans although was successfully tested in rhesus macaques. 34. Unlike most other researchers, Salk focused on creating an inactivated or " killed " virus vaccine , for safety reasons. 35. It is the first oil-in-water influenza vaccine adjuvant to be commercialized in combination with a seasonal influenza virus vaccine . 36. Wyeth Labs of Philadelphia won a $ 4 million contract from the Defense Personnel Support Center for influenza virus vaccines . 37. The dozen that received the combined virus vaccine developed antibodies that successfully protected the animals from the West Nile virus. 38. However, it may propose a renewed emphasis on the killed-virus vaccine ( IPV ) developed by Jonas Salk in 1955. 39. Take the oral polio vaccine, a potent live-virus vaccine but one that carried a small risk of actually causing polio. 40. The new information immediately touched off a sharp debate about the risks of a human version of the live-virus vaccine .
