COVID-19 vaccine side effect causing false positive cancer screeningsAccording to the MD Anderson Cancer Center, swelling caused by the COVID vaccine is causing false positives on cancer screening examsHOUSTON — One side effect of the COVID-19 vaccine is swelling. RELATED: Houston expands who can get on COVID vaccine waitlist for FEMA location and other sites According to MD Anderson Cancer Center, that swelling is causing false positives on cancer screening exams. "Cancer experts at MD Anderson are seeing an uptick in mammograms identifying a false positive for breast cancer due to a common side effect of the available COVID-19 vaccines...