Covid
Corona for 613 days: Rare case of infection presented
Electron micrograph of the SARS-CoV-2 coronavirus. photo
© Uncredited/NIAID/NIH/dpa
Some people have such a weakened immune system that they can no longer get rid of their corona infection. Doctors are now presenting a particularly extreme case.
The researchers led by Magda Vergouwe from the University of Amsterdam want to present the results at a congress of the European Society for Clinical Microbiology and Infectious Diseases in Barcelona at the end of April. The case is also interesting for researchers because the coronavirus can change particularly significantly in such long-term infected people. This poses the risk of variants of the virus emerging that the immune systems of healthy people can overcome more easily.
A total of more than 50 mutations
The researchers in the Netherlands repeatedly took samples from the man to examine the genetic material of the coronavirus. They found a total of more than 50 mutations compared to the omicron variant BA.1 that was circulating at the time, including those that allow the virus to evade the immune system. Just 21 days after the man received a certain corona drug, the virus also developed resistance to it.
The man ultimately died due to a relapse of one of his previous illnesses. As far as is known, he did not infect anyone with his mutated version of the coronavirus.
Immunocompromised people are particularly at risk
“This case highlights the risk posed by ongoing Sars-CoV-2 infections in immunocompromised people,” the researchers are quoted in the statement. As the virus develops extensively in a single patient, unique variants could emerge. It is important to closely monitor the evolution of the coronavirus in immunocompromised people. There is a risk that variants will emerge and spread through society that are less likely to affect the immune systems of healthy people.