Isifo seCoronavirus 2019 ( COVID-19 ) yisifo esithathelwanayo esibangelwa ukuqina kokuphefumula kwe-acute immune coronavirus 2 (SARS-CoV-2). Lesi sifo saqala ukubonwa ngonyaka ka-2019 eWuhan, inhloko-dolobha yaseChina iHubei, futhi selusabalale umhlaba wonke, okuholele ekutheni ubhubhane oluqhubekayo lwangonyaka ka-2019 ukuya ku-20 lubone . Izimpawu ezijwayelekile zifaka phakathi umkhuhlane, ukukhwehlela, kanye nokuphefumula . Ezinye izinkomba zingafaka ubuhlungu bemisipha, ukukhiqizwa kwesikhwehlela, uhudo, umphimbo obuhlungu, ukulahleka kwephunga nobuhlungu besisu. Ngenkathi iningi lamacala liba nezimpawu ezithambile, abanye bathuthukela ku- pneumonia kanye nokwehluleka kwezitho eziningi . Ukusuka ngomhla zingama-28 kuNdasa wezi-2020, isilinganiso sokushona kwenani ngalinye lamacala atholakele ngamaphesenti angama-4,6; lisuka kumaphesenti angama-0,2 laya kumaphesenti ayi-15 ngokuya ngeminyaka yobudala nezinye izinkinga zempilo . Uma siqhathanisa inani lokufa kwabantu jikelele le- 1918 Flu yaseSpain ibicishe ibe yi-3% iye ku-5%. Leli gciwane lisakazeka ikakhulu ngesikhathi sokuxhumana okuseduze nangamaconsi omoya wokuphefumula akhiqizwa lapho abantu bekhwehlela noma bezela. Amaconsi okuphefumula kungenzeka akhiqizwe ngenkathi uphefumula kepha igciwane ngokuvamile alikho moya . Abantu bangaphinde banenkontileka ye-COVID-19 ngokuthinta indawo engcolisiwe bese bebhekene nobuso babo.