"A Big Unknown in Covid-19 Vaccine Development: How Long Will Protection Last?" - Jared S. Hopkins
One study from Mount Sinai of nearly 20,000 people with suspected or confirmed Covid-19 found most had moderate or high levels of antibodies. When the Mount Sinai researchers called back roughly 120 participants three months after they first got sick, most had antibodies, though they had waned a bit. "That’s not unexpected," noted Ania Wajnberg, an associate professor of internal medicine at Mount Sinai and lead author of the study. "Your body doesn’t need as many antibodies when it’s not sick anymore."