Gwirikwiti, irowo rinozivikanwa nekuti morbilli, rubeola, kana kuti gwirikwiti dzvuku, utachiona hunotapukira chaizvo hunokonzerwa nevhairasi rinonzi measles. Zviratidzo zvekutanga zvinowanzosanganisira fivha, inowanzodarika 40 °C (104.0 °F), kukosora, kuyerera dzihwa, uye maziso akatsvuka. Pashure pemazuva maviri kana matatu kubva panotanga zviratidzo zvacho, mumukanwa munooneka tumapundu tudiki tuchena, tunozivikanwa nekuti Koplik's spots. Tumapundu tutsvuku tusina kukura utwo twunowanzotanga pachiso twobva twapararira nemuviri wese twunowanzotanga pashure pemazuva matatu kusvika kumashanu kubva panotanga kuoneka zviratidzo. Zviratidzo zvinowanzotanga kuoneka mazuva 10–12 pashure pekunge munhu ava pedyo nemunhu ane chirwere chacho, uye zvinogara kwemazuva 7–10. Zvinhu zvinozowedzera kuipira inenge 30% uye zvingasanganisira kuita manyoka, upofu, kuzvimba kweuropi, uye mabayo nezvimwewo. Rubella (gwirikwiti rekuGerman) rakasiyana nechirwere chinonzi roseola. Gwirikwiti chirwere chinofamba nemumhepo icho chinopararira zviri nyore mukukosora nemukuhetsura kwevane utachiona hwacho. Chinogonawo kupararira munhu paanobata kana kuguma mate kana madziwa zvemunhu anacho. Vanhu vasina kudzivirirwa vanokwana 9 pa10 vega vega vanobatira chirwere chacho kana vachigara nemunhu anacho. Vanhu vanotapurira vamwe chirwere ichi mumazuva mana tumapundu tusati twaoneka pavari uye mumazuva mana pashure pekunge twatanga kuoneka. Kakawanda vanhu vanowana chirwere ichi kamwe chete.