The first case of coronavirus reinfection has been confirmed in the U.S. in a 25-year-old Nevada man whose second case was more severe. It's the fifth confirmed reinfection case worldwide.
A health care worker tests a patient for the coronavirus in Nevada in July. Scientists say a 25-year-old Nevada man was infected with the virus twice. It is the first confirmed case of reinfection in the U.S.A health care worker tests a patient for the coronavirus in Nevada in July. Scientists say a 25-year-old Nevada man was infected with the virus twice. It is the first confirmed case of reinfection in the U.S.
"The second infection was symptomatically more severe than the first," the authors of the study write. The patient survived his second bout with COVID-19. "There are many reasons why a person might get sicker the second time around," explains Akiko Iwasaki, a professor of immunobiology at Yale University who was not involved in the Nevada study. For example,"they may have been exposed to a lot higher levels of the virus the second time around," she says, or the immune response from the first infection might be making the disease worse rather than better.
Only the most advanced hospital and laboratory facilities have the equipment and personnel to do the genome sequencing and analyze the results. As a result, most cases of reinfection are likely going undetected.
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