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.
(Note: The L-15 medium formulation was devised for use in a free gas exchange with atmospheric air. A CO2 and air mixture is detrimental to cells when using this medium for cultivation).
Pedersen NC, Theilen GH. Vaccine for preventing persistent feline leukemia viremia in cats. US Patent 4,264,587 dated Apr 28 1981
Theilen GH, et al. Replication of cat leukemia virus in cell suspension cultures. Nature 222: 589-590, 1969. PubMed: 5818677
Pedersen NC, et al. Safety and efficacy studies of live- and killed-feline leukemia virus vaccines. Am. J. Vet. Res. 40: 1120-1126, 1979. PubMed: 230767
