Apa itu covid19 ?

Covid 19 (corona virus disease) penyakit corona virus yang sebelumnya bernama 2019 nCOV (novel  coronavirus) refrensi bisa ditemukan di :

https://translate.google.com/translate?u=https://en.wikipedia.org/wiki/Coronavirus_disease_2019&hl=id&sl=en&tl=id&client=srp

https://m.kumparan.com/kumparannews/apa-itu-covid-19-corona-atau-covid-19-sih-1tDAiVp9tep