A swine flu vaccine developed by South West Veterinary Services appears to be working.
It reports that litters born to vaccinated sows had higher average daily gain, lower mortality and fewer clinical signs of disease.
The vaccine combines antibodies against a number of the most common swine influenza strains as identified at the animal health laboratory the Ontario agriculture ministry runs at Guelph.
The Canadian Food Inspection Agency granted approval to use the vaccine, beginning last year.
The idea for the vaccine came from Dr. Kevin Valaca who reasoned that the same approach used to develop human flu vaccines incorporating antibodies to a number of strains might work for pigs.