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.
Brunell PA, Casey HL. Crude tissue culture antigen for determination of Varicella-Zoster complement fixing antibody. Public Health Rep. 79: 839-842, 1964. PubMed: 14213793
Brunell PA. Transmission of chickenpox in a school setting prior to the observed exanthem. Am. J. Dis. Child. 143: 1451-1452, 1989. PubMed: 2556025
