3 ms·
Yeah, there's a limited window over which antibody testing is useful. I hadn't heard that it was only a few months, but that wouldn't be shocking, especially if
by Ankaios 5y ago
Yeah, there's a limited window over which antibody testing is useful. I hadn't heard that it was only a few months, but that wouldn't be shocking, especially if you want a low rate of false negatives. Hopefully someone reading this knows more than me about approaches to testing that might work over longer time scales and not be confused by vaccination.
- dataflow 5y agoActually I just Googled again, and they simply say the precise duration is unknown [1]: > IgG antibodies, including IgG against the S and N proteins, persist for at least several months in most persons, but the precise duration of time that antibodies persist after infection is unknown. [1] https://www.cdc.gov/coronavirus/2019-ncov/lab/resources/antibody-tests-guidelines.html https://www.cdc.gov/coronavirus/2019-ncov/lab/resources/anti...