Vaccine usage shown to vary

摘要

Estimates have been presented in the USA suggesting that more use is made of vaccination against respiratory mycoplasma and swine influenza than to control PRRS. Sunshine and Sea World are among the attractions of Orlando in the USA. but matters relating to pig health were also on the agenda there earlier this year when the American Association of Swine Veterinarians came to Florida for its annual meeting. A principal focus of the discussions was the control of respiratory infections in both breeding and growing pigs.