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Scientists at the University of Hong Kong say they have the first time a user has been re-infected with the virus that causes Covid-19.
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Genetic testing revealed that a 33-year-old man returning to Hong Kong from Spain in mid-August had another strain of coronavirus from the one that had already caught fire in March, said microbiologist Kelvin Kai-Wang To. who directed the work.
The type had mild symptoms the first time and none at the time; their maximum recent infection detected by screening and testing at Hong Kong Airport.
“This shows that some other people are not immune for life” to the virus if they already had it, said A. “We don’t know how many other people can be reinfected. There are others out there.
The article has been accepted through the journal Clinical Infectious Diseases, but has still been published and some independent experts have asked for caution until full effects are available.
The question of whether other people who have had Covid-19 are immune to new infections and for how long they are key problems that have implications for vaccine progression and social and back-to-school decisions.
Although a user would possibly become inflamed for a moment, it is not known whether they oppose a serious illness, as the immune formula regularly remembers how to make antibodies opposed to a virus they have already seen.
It is unclear how another virus will have to be to cause a disease, however, new paints suggest that ‘Covid’s patients will not be content with prevention measures’ and continue to distance themselves socially, wear masks and other tactics to lessen the infection, To said.
Two paperless experts in the paintings agree.
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“We know that reinfection is an option and I think it’s very telling” what happened in this case, said Dr. Jesse Goodman, a former lead scientist for the US Food and Drug Administration now at Georgetown University. “If there is reinfection, it suggests the option that there is a residual immunity matrix . . . that helped protect the patient” from a new disease, Goodman said.
However, “if immunity decreases due to an herbal infection, this can also be a challenge for vaccines” and possibly would mean that booster injections are needed, he added.
Julie Fischer, a microbiologist at CRDF Global, a nonprofit fitness organization in Arlington, Virginia, said the test provided compelling evidence that reinfection can occur.
“Genuine is what it means for the severity of the disease” if it happens, and if those other people can infect other people, he said.
An expert saw the report as a smart news story. Paul Offit, a vaccine expert at Philadelphia Children’s Hospital, said it’s encouraging that the reported reinfection had no symptoms.
“It’s a victory for me,” because it suggests that a first infection can be opposed by a user opposing a moderate to serious illness at the time, he said in an interview with the Journal of the American Medical Association.
A survey conducted in mid-May via Sermo, which shared information with physicians, found that 13% of the 4,173 physicians who responded believed they had treated one or more reinfected patients. Among those surveyed, 7% of those from the United States and 16% from other countries believed they had noticed such a case.
However, fitness officials also questioned whether other people who tested positive long after their initial illness only showed symptoms of not getting rid of the virus at all than re-infecting.