A new study shows that survivors of serious COVID-19 infections produce antibodies that can persist for months.
Researchers used blood samples taken from 343 patients up to four months after their symptoms first appeared and compared them to 1,500 individuals’ blood samples taken before the pandemic. Their findings showed that antibodies to COVID-19 remained elevated and were perceptible for four months.
Another finding gave researchers clues to determining how long it’s been since an individual was first infected. "We can say now that if a patient has IgA and IgM responses, they were likely infected with the virus within the last two months,” said Dr. Richelle Charles, senior author of the study.
SOURCE: World Pharma News October 8, 2020