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Scientists Confirm Nevada Man Was Infected Twice With Coronavirus:
A 25-year-old was infected twice with the coronavirus earlier this year, scientists in Nevada have confirmed. It is the first confirmed case of so-called reinfection with the virus in the U.S. and the fifth confirmed reinfection case worldwide.
The cases underscore the importance of social distancing and wearing masks even if you were previously infected with the virus, and they raise questions about how the human immune system reacts to the virus.
The two infections in the Nevada patient occurred about six weeks apart, according to a case study published Monday in the medical journal The Lancet. The patient originally tested positive for the virus in April and had symptoms including a cough and nausea. He recovered and tested negative for the virus in May.
But at the end of May, he went to an urgent care center with symptoms including fever, cough and dizziness. In early June, he tested positive again and ended up in the hospital.
"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.
[...] One of the biggest outstanding questions is how widespread reinfection might be. It's difficult to confirm cases in which a person is infected twice. Scientists must have the nasal swabs from both the first and second infection in order to compare the genomes of both virus samples.
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.
(Score: 0) by Anonymous Coward on Wednesday October 14 2020, @03:22AM (2 children)
What study would you have expected to see it? This is the first one to look to my knowledge.
(Score: 2) by HiThere on Wednesday October 14 2020, @02:22PM (1 child)
Everyone who's building a vaccine has been watching for this kind of reaction. This is why one vaccine is base around a chimp virus....so nobody will already have a reaction to it.
Most of the vaccines require two shots, so a bad immune reaction to the second shot is really undesirable. This isn't the first study by any means. Most of the studies haven't found any severe induced reaction. A couple have had things that caused the development to be paused while the reaction was studied to decide whether it was safe to continue. (So far the ones I know of decided it was safe, but the details are proprietary so outsiders can't validly second-guess them...yet.)
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
(Score: 0) by Anonymous Coward on Wednesday October 14 2020, @03:11PM
You only expect to see it under certain circumstances. I'd, when antibodies have waned or in old animals, patients. Have you seen a study where they look for it?