Two new medical studies suggest that people who are once infected with COVID-19 are less likely to be tested positive again for six months and possibly longer.
Researchers have found that people with antibodies to a natural infection had a much lower risk of “an effective vaccine to get the virus back, depending on the same type of protection …”. U.S. Of the National Cancer Institute, which conducted a study.
“It’s very, very rare,” he said.
Two types of tests were used in both studies. One is a blood test for antibodies, which attach to the virus and help eliminate it; Antibodies last for several months after infection. Other types of testing use nasal or other samples to detect the virus or its bits, indicating a current or recent infection.
File: This 2020 electron microscope image is provided by the National Institute of Allergy and Infectious Diseases.
(AP by NIAID-RML)
A study published on Wednesday by the New England Journal of Medicine Medicine involved more than 12,500 health workers from Oxford University Hospitals in the United Kingdom. Of the 1,265 people who initially had coronavirus antibodies, only two had positive results on tests to detect active infection in the following six months and neither developed symptoms.
It initially contrasts with 11,364 workers who did not have antibodies; Of those, 223 tested positive for the infection in about six months.
In the front line of the Florida seniors say covid vaccines, God. Desentis
The National Cancer Institute study involved more than a million people who underwent antibody testing from two private labs in the United States. Less than 1% of people who initially had antibodies later tested positive for coronavirus, compared to 3% who had a lack of such antibodies.
“It’s very satisfying to see that Xford researchers have reduced the same risk,” Sharpless said.
His organization’s report was posted on a website used by scientists to share research and is being reviewed in a major medical journal.
Infectious disease specialist Joshua Joshua Wolfe said the findings were “not surprising” but reassuring because they “tell people that immunity to the virus is normal.”
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Although antibodies may not be self-defense, they may be just a sign that other parts of the immune system are capable of fighting any new exposure to the virus, Wolf said.
Wolf added, “We don’t know how long this immunity lasts.” Cases of people getting Covid-19 more than once have been confirmed, so “people still need to save themselves and others by preventing re-arrangement.”
The Associated Press contributes to this report.
