The primary source of bacterial contamination is human feces. The agents may be transmitted to the child in a variety of ways including direct contact with feces through another person's dirty hands, direct contact through the child crawling on unclean surfaces;
Gwero lalikulu la kuipitsidwa ndi mabakiteriya ndi ndowe za anthu. Mankhwalawa amatha kufalikira kwa mwanayo m'njira zosiyanasiyana, kuphatikizapo kukhudzana mwachindunji ndi ndowe kudzera m'manja akuda a munthu wina, kukhudzana mwachindunji ndi mwanayo akukwawa pamalo odetsedwa;