Ajakaye-arun (pandemia lati inu ede Greek to tunmo si "gbogbo" ati "eniyan") je ibujade akoran arun kan ti o nlo kaa kiri orile-ede tabi ekun ti o ju eyokan lo.. 
Àjàkálẹ̀-àrùn COVID-19 ni wọ́n fìdí rẹ múlẹ̀ pé ó dé orílẹ̀-èdè Mali ní Oṣù Kẹta ọdún 2020.Ìpínlẹ̀ ní ọjọ́ kejìlá Oṣù ìkíni ọdún 2020, àjọ tí ó ń rí sí ètò ìlera ní àgbáyé (World Health Organization) fìdí rẹ múlẹ̀ pé kòkòrò àrùn erankorona ni ó fa àrùn atégùn ní àárín ọ̀pọ̀ ènìyàn ní ìlú Wuhan, agbègbè Hube ní orílẹ̀-èdè China èyí tí wọ́n jábọ̀ rẹ̀ fún àjọ tí ó ń rí sí ètò ìlera ní àgbáyé (World Health Organization) ní ọjọ́ kọkànlélọ́gbọ̀n Oṣù kejìlá ọdún 2019.. 