Test monkeys infected with the novel coronavirus responsible for the COVID-19 pandemic were protected from reinfection for up to 28 days later, a Chinese study out Thursday in the journal Science said.
Jul 3, 2020
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COVID-19 patients may experience more severe symptoms the second time they are infected, according to research released Tuesday confirming it is possible to catch the potentially deadly disease more than once.
Oct 13, 2020
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People may be able to fight off reinfection for at least six months after they recover from COVID-19 thanks to cells that can "remember" the virus, according to research published Monday.
Jan 18, 2021
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Throughout the COVID-19 pandemic, there has been much uncertainty about how long immunity lasts after an unvaccinated person is infected with SARS-CoV-2.
Oct 4, 2021
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Reinfections of seasonal coronaviruses are frequent, according to new research that suggests that the coronavirus behind the current pandemic could also produce reinfections.
Mar 26, 2021
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A new article by Columbia Mailman School researchers Jeffrey Shaman and Marta Galanti explores the potential for the COVID-19 virus to become endemic, a regular feature producing recurring outbreaks in humans. They identify ...
Oct 15, 2020
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In 2020 and early 2021, people who had been infected with SARS-CoV-2 had around 72% to 86% protection against reinfection with the virus for at least six months, according to a new study published February 10 in PLOS Biology ...
Feb 10, 2022
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It may be possible to have two completely separate bouts of COVID-19, doctors have warned in the journal BMJ Case Reports after treating a man whose infections were separated by 4 months of no symptoms and serial negative ...
Feb 5, 2021
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Natural infection with COVID-19 offered protection from reinfection when the gamma and delta variants predominated, according to a new University of Michigan study that also provides levels of antibodies needed to protect ...
Nov 30, 2021
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People who have had COVID more than once are two or three times more likely to have a range of serious health problems than those who have only had it once, the first major study on the subject said Thursday.
Nov 13, 2022
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