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New reports show coronavirus immunity can last for months

October 14, 2020. Summarized by summa-bot.

Immunity to Covid-19 can last for months as people build antibodies, three new reports show

One study found that people produce antibodies that protect against infection and last for at least five to seven months.

"We conclude that neutralizing antibodies are stably produced for at least 5-7 months after SARS-CoV-2 infection," his team wrote in a report published in the journal Immunity on Tuesday.

"That said, we know that people who were infected with the first SARS coronavirus, which is the most similar virus to SARS-CoV-2, are still seeing immunity 17 years after infection.

"Knowing how long antibody responses last is essential before we can use antibody testing to track the spread of COVID-19 and identify 'hot spots' of the disease," said Dr. Jason Harris, a pediatric infectious disease specialist who worked on the study.

"This study confirms that serum and saliva IgG antibodies to SARS-CoV-2 are maintained in the majority of COVID-19 patients for at least 3 months post symptom onset," they wrote in Science Immunology.

"This study suggests that if a vaccine is properly designed, it has the potential to induce a durable antibody response that can help protect the vaccinated person against the virus that causes COVID-19," Jennifer Gommerman, professor of immunology at the University of Toronto, said in a statement.

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