Ngozi paumoyo: Tizilombo toyambitsa matenda titha kufalitsa matenda, monga mliri, kolera, chibayo, ndi zina zotero. Matendawa amatha kuwononga kwambiri thanzi la anthu.Angathenso kufalitsa mabakiteriya ndi tizilombo toyambitsa matenda kudzera m'zakudya ndi madzi, zomwe zimayambitsa matenda a m'mimba komanso poizoni wa zakudya ....
Werengani zambiri