Some people can blame their DNA for making them more likely to get COVID-19 or becoming severely ill if they get infected.
A study of more than 45,000 people with COVID-19 has uncovered 13 genetic variants linked to an increased risk of infection with SARS-CoV-2 or a higher chance of developing severe illness, researchers report July 8 in Nature. The team includes more than 3,300 researchers in 25 countries.
Some of the variants had been uncovered in previous studies. For instance, researchers again confirmed a genetic link between blood type and the likelihood of getting infected, but don’t know why people with type O blood may be slightly protected. The study also verified that a variant that disables the TYK2 gene raises the risk of critical illness and hospitalization. That variant is known to protect against autoimmune disease, but leaves people more vulnerable to tuberculosis.
Author(s): Tina Hesman Saey
Publication Date: 8 July 2021
Publication Site: Science News