A prospective study of the association between SARS-CoV-2 infection and COVID-19 vaccination with changes in usual menstrual cycle characteristics. 20 Jul, 2022 | 12:27h | UTC A prospective study of the association between SARS-CoV-2 infection and COVID-19 vaccination with changes in usual menstrual cycle characteristics – American Journal of Obstetrics and Gynecology Commentary: Study suggests COVID-19 vaccination may be associated with short-term changes in usual menstrual cycle length – News Medical