A 33-year old Hong Kong resident contracted the COVID-19 twice this year. He was infected once in March, recovered from it, only to become re-infected in August.

The first time, his symptoms were mild; second time, they were asymptomatic. They are 142 days apart in terms of infection.

The second time, he was returning from a trip to Spain via the United Kingdom. The study noted that the Coronavirus involved between the first time and the second time were unrelated strains, showing that acquired immunity may not be as strongly counted upon to keep the population safe, even if a significant number recover from the infection.

Given the variety of COVID-19 mutations, experts advise that people should take the vaccine when it becomes available to minimize the continued spread of the number of COVID-19 viruses.

코리일보/COREEDAILY

Coree ILBO copyright © 2013-2020. All rights reserved.

This material may not be published, broadcast, rewritten or redistributed in whole or part with out the express written permission.