Studies Show Swine Flu Vaccine Effective For Adults
Fauci Defends H1N1 Vaccine
Why is a coronavirus vaccine taking longer to develop than the Swine Flu vaccine?
H1N1 Vaccine is Here
Millions of Swine Flu Vaccines to Be Thrown Out
The 2009 swine flu pandemic vaccines were influenza vaccines developed to protect against the pandemic H1N1/09 virus. These vaccines either contained inactivated (killed) influenza virus, or weakened live virus that could not cause influenza. The killed virus was injected, while the live virus was given as a nasal spray. Both these types of vaccine were produced by growing the virus in chicken eggs. Around three billion doses were produced, with delivery in November 2009.