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.
Nelson, M. R. and H. K. Knuhtsen, "Squash Mosaci Virus Variabiltiy: Review and Serological Comparisons of Six Biotypes," Phytopathology 63:920-26 (1973).
