How many days do COVID antibodies stick around?Adults who get COVID-19 could have antibodies circulating in their blood for nearly 500 days after infection, new research suggests.
"We now have a good estimate of how long antibodies last after a COVID-19 infection," said study author Michael Swartz, an associate professor and vice chair of biostatistics at the University of Texas Health Science Center at Houston. "Our research shows that the level of antibodies in those previously infected increases for the first 100 days post-infection and then gradually declines over the next 500 days and beyond."
For the new study, Swartz and his team analyzed data from more than 57,000 volunteers older than 20 enrolled in the Texas CARES survey. It was launched in October 2020 to track COVID-19 antibody status over time.
Most of the volunteers self-reported a COVID-19 infection before October 2020. The researchers examined blood samples collected from participants between Oct. 1, 2020, and Sept. 17, 2021.
I was hospitalized with Covid in January 2021, and received a second vaccine dose in May 2021. 11 and six months later, respectively, I did the antibodies test and my level was higher than the test could measure. Whether the antibodies were from recovery, vaccine, or both, I don't know (I suspect both). Whichever, antibodies do persist, which would have been nice to know, a year ago. If at least some of those antibodies detected 6 months ago were from recovery, that disproves anti-Covid-vaxxers' claim that
The Vaccine wipes out antibodies from recovery. Unsurprisingly. Further, if at least some of those antibodies detected 6 months ago were from vaccination, that disproves gooberment alarmists' claim that antibodies from vaccination dissipate after 6 months. Unsurprisingly. Again, I suspect that both claims are proven false, and a pox o' all their houses.
