The more virulent Delta strain of COVID-19 is not currently circulating in China and the circulating nine strains are all variants of Omicron, according to epidemiological data, experts said.

While many people are recovering from the novel coronavirus infection, some people worry if they could get reinfected quickly. Let's check the facts on reinfection.

1. What is the COVID-19 reinfection?

The COVID-19 reinfection refers to a COVID-19 infection that occurs after a person has recovered from their previous COVID-19 infection.