This kit contains materials of human origin which have been tested and have a negative response by FDA-approved method for the presence of HbsAg and for anti-HIV-1, anti-HIV-2 and anti-HCV antibodies. as no diagnostic test can offer a completed guarantee regarding the absence of infective agents, all material of human origin must be handled as potentially infectious. all precaution normally adopted in laboratory practice should be followed when handling material of human origin.