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Antibodies against coronavirus remained in the blood of patients with Covid-19 for at least eight months after they were infected, Italian researchers have said.
They were present “regardless of the severity of the illness, the age of the patients or the presence of other pathologies,” according to a statement from the San Raffaele hospital in Milan.
“The presence of neutralising antibodies, while reducing over time, was very persistent — eight months after diagnosis, there were only three patients who no longer showed positivity to the test,” said the statement, issued jointly with the ISS national health institute.
