Health Care

Scientists Confirm COVID Reinfection Case As Trump Baselessly Claims To Be Immune

Scientists Confirm COVID Reinfection Case As Trump Baselessly Claims To Be Immune”

He was only 25, had no prior medical conditions, and although the PCR nasal-swab test for Covid-19 he took came back positive, he was soon feeling well again. Lingering symptoms included fatigue and shortness of breath. But, according to the researchers, the majority are most likely deaths that are indirectly caused by the pandemic.

Despite the concerning findings, the researchers stressed that reinfection remains rare, considering only a handful of cases out of millions have been confirmed globally.

They said another plausible explanation could be the mechanism of antibody dependent enhancement in which some protective proteins produced by the immune system during the first encounter with the virus could make a subsequent infection worse. The patient received two negative tests before receiving a second diagnosis in June, when he had more severe symptoms.

He may have been exposed to a very high dose of the virus the second time around, triggering a more acute reaction.

Alternatively, they proposed that it may have been a more virulent (more harmful) strain of the virus that led to severe infection.

Dutch media said this was the first known case worldwide of a death after SARS-CoV-2 coronavirus reinfection.

In the Nevada case, researchers say the Reno-area man tested positive for COVID-19 in April.

"With the number of people who have been infected, there are only a dozen or so proven reinfections - that's not much", he told AFP.

That previous genetic study, paired with the two new studies in Blood Advances, are "suggestive that this is a real phenomenon that we're seeing", said Adalja, whose work is focused on emerging infectious disease.

"Thus, previous exposure to SARS-CoV-2 might not guarantee total immunity in all cases".

He said there has been a decline in the cumulative, weekly and daily COVID-19 positivity rates, which stand at 8.07 percent, 6.24 percent and 5.16 percent, respectively.

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Even more striking, only 67 percent (or 150,541) of those excess deaths were directly attributed to COVID-19.

Lia van der Hoek, an expert on coronaviruses at Amsterdam UMC, has studied the pathogens for decades. "We used this study to investigate that question and found immunity is stable for at least five months", who led the study, published today in the journal Immunity, alongside professor Janko Nikolich-Zugich from UArizona.

One patient was infected on 17 separate occasions over the study period.

"Covid-19 will probably behave the same", she told AFP.

He said that evidence from other respiratory viruses suggested widespread reinfections of Covid-19 was by no means impossible.

A woman in the Netherlands has become the first person to die after being reinfected with coronavirus.

The patient's second and more severe infection resulted in hospitalisation with oxygen support.

"Fortunately, some vaccine candidates appear to do exactly that".

"This information is key to understanding which vaccines are capable of crossing that threshold to confer individual and herd immunity", she added.

While there is now no proof that occurs with Covid-19, Shaman said he knows of no-one who can rule that out.



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