With COVID there is as much chance of reinfection as there is for infection. Moreover, COVID guidelines have also been relaxed in several places which makes the chances of reinfection more possible.

from Times of India https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/coronavirus-infection-i-got-infected-with-covid-just-a-month-ago-but-i-recently-met-a-positive-person-can-i-get-infected-again/photostory/90890120.cms