title: Sémér
text: Makehan bakteri, virus, parasit miwah oong sané ngregedin sémér masumber saking tai utawi feses manusa miwah baburon, contonyané saking sistem sanitisi minakadi septic tank utawi badan ubuan. Bakteri sané lumrah katemuin minakadi E. coli, Salmonella, Shigella, miwah Campylobacter jejuni. Virus sané lumrah katemuin minakadi norovirus, sapovirus, rotavirus, enteroviruses, and hepatitis A and E. Parasit sané lumrah katemuin minakadi Giardia lamblia, Cryptosporidium, Cyclospora cayetanensis, and microsporidia.