Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Dobrescu L, Huygelen C. Pre-farrowing pregnant sow piglet colibacillosis vaccines and process for their administration to pregnant sows before farrowing. US Patent 4,053,584 dated Oct 11 1977
