Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Nepo mavhairasi emiti nemabhakitiriya anogona kurimwa nyore nyore, mavhairasi emhuka anowanzoda mhuka inorarama, izvo zvinoita kuti kudzidza kwawo kuve kwakaoma zvikuru. Muna 1931 kwakaratidzwa kuti utachiona hweinfluenza hwaigona kurimwa mumazai ehuku akaberekwa, nzira ichiri kushandiswa nhasi kugadzira mishonga yokudzivirira. Muna 1937, Max Theiler akakwanisa kukudziridza utachiona hweyellow fever mumazai ehuku ndokugadzira mushonga kubva pamhando yeutachiona hwakaderedzwa; mushonga uyu wakaponesa upenyu hwemamiriyoni uye uchiri kushandiswa nhasi.  Mubvunzo: Chii chinofanira kucherechedzwa pautachiona hwemhuka?
mhuka inorarama