Counter-study to the Long COVID-19 claim: https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2785832 >A serology test result positive for SARS-COV-2 was positively associated only with persistent anosmia (odds ratio, 2.59; 95% CI, 1.57-4.28), even when restricting the analyses to participants who attributed their symptoms to COVID-19 infection. ... >Further adjusting for self-rated health or depressive symptoms yielded similar results. There was no significant interaction between belief and serology test results. >The findings of this cross-sectional analysis of a large, population-based French cohort suggest that persistent physical symptoms after COVID-19 infection may be associated more with the belief in having been infected with SARS-CoV-2 than with having laboratory-confirmed COVID-19 infection.