, Columnist
Blood Clots Aren't the Only Vaccine Side Effects Worth Studying
Post-jab symptoms — like changes in menstruation — can be considered mild and still cause anxiety.
Every jab is a chance to learn.
Photographer: Eva Marie Uzcategui/AFP/Getty ImagesThis article is for subscribers only.
One can hardly blame people for being worried about the new Covid-19 vaccines when there are so many anecdotal reports of weird side effects — including women experiencing disturbing changes in their menstrual cycles.
Reports of early and unusually heavy periods or other irregularities were becoming so common earlier this spring that University of Illinois anthropologist Kate Clancy started collecting them. People may wonder, rightly, why this isn’t being studied in a more systematic way. If something this unexpected can happen, then what else?