Mitundu yotchuka kwambiri ndi: thumba lofiira la biohazard ndi thumba lachikasu la biohazard, lomwe nthawi zambiri limagwiritsidwa ntchito m'chipatala ndi malo ogulitsa.Thumba la biohazard ndilabwino kutolera zinyalala zachipatala ndikupatula komwe kumayambitsa matenda.chonde dziwani kuti ndi matumba otayika, osagwiritsidwanso ntchito.