https://www.wsj.com/articles/the-dubious-origins-of-long-covid-11616452583
Add "long covid" to masks, vaccine efficacy, social distancing, lockdowns, plastic barriers ...
"But many of the survey respondents who attributed their symptoms to the aftermath of a Covid-19 infection likely never had the virus in the first place. Of those who self-identified as having persistent symptoms attributed to Covid and responded to the first survey, not even a quarter had tested positive for the virus. Nearly half (47.8%) never had testing and 27.5% tested negative for Covid-19. Body Politic publicized the results of a larger, second survey in December 2020. Of the 3,762 respondents, a mere 600, or 15.9%, had tested positive for the virus at any time."
Add "long covid" to masks, vaccine efficacy, social distancing, lockdowns, plastic barriers ...
"But many of the survey respondents who attributed their symptoms to the aftermath of a Covid-19 infection likely never had the virus in the first place. Of those who self-identified as having persistent symptoms attributed to Covid and responded to the first survey, not even a quarter had tested positive for the virus. Nearly half (47.8%) never had testing and 27.5% tested negative for Covid-19. Body Politic publicized the results of a larger, second survey in December 2020. Of the 3,762 respondents, a mere 600, or 15.9%, had tested positive for the virus at any time."