October 19, 2020 – Blood antimagen grades for coronavirus patients decrease after the framework gets rid of the virus, according to a new study published in mBio, an open access journal of the American Society of Microbiology.
For convalescent plasma to help patients who already have COVID-19, donated blood should be collected within a time after recovery, however, according to existing guidelines, patients can only donate blood 14 days after symptoms have disappeared and maximum donations are established. even later.
“We don’t need to transfuse the virus, just transfuse the antibodies. But at the same time, our paintings show that plasma’s ability to neutralize viral waste decreases those first few weeks,” Andres Finzi, one of the study’s authors and microbiologist at the University of Montreal in Canada, said in a statement.
The study team analyzed blood samples from 31 other people recovering from COVID-19 and measured the antibodies at one-month intervals. In general, immunoglobulins that neutralize the virus decreased between six and ten weeks after the onset of symptoms. virus also decreased this period.
In previous studies, researchers have found that antibodies peak two to three weeks after the onset of symptoms and then decrease. Finzi and his colleagues also discovered that the ability to neutralize the virus decreased, about three to six weeks after the onset of symptoms.
Antibodies block the “peak” protein in SARS-CoV-2, which the virus invades a cell phone in the body. Neutralize the coronavirus by preventing it from blocking a guest’s mobiles and replicating.
Scientists are not sure that the neutralizer serves as a stimulator of the potency of convalescent plasma use in patients with COVID-19, Finzi and the study team wrote. If this is the case, recovered patients can donate as soon as possible, they said.
“Efforts should be made to ensure that convalescent plasma is collected as soon as you can imagine after the donor recovers from an active infection,” they wrote.
mBio, “Decreased fun responses the peak of SARS-CoV-2 in convalescents”.
EurekAlert, “As patients with COVID-19 recover, antibodies temporarily decrease. “
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