Pigs can still pass on swine flu infection after vaccination, Pirbright collaboration shows
Effective flu vaccines are crucial for controlling disease outbreaks in pigs and reducing the threat of transmission to humans. A collaboration between The Pirbright Institute, the Animal and Plant Health Agency (APHA), the University of Edinburgh and The Jenner Institute has shown that several vaccines for the 2009 swine flu pandemic virus (H1N1) were able to reduce signs of disease and virus shedding in pigs, but that immunised pigs could still pass the virus on to unvaccinated pen mates.