O lenei pusa e fetaui lelei mo le in vitro qualitative determination o le hepatitis B virus, syphilis spirochete, siama immunodeficiency tagata, ma le hepatitis C siama i serum tagata / plasma / toto atoa samples mo le suʻesuʻega fesoasoani o siama hepatitis B, syphilis spirochete, tagata. fa'ama'i fa'ama'i o le immunodeficiency, ma fa'ama'i pipisi o le hepatitis C.