The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.
The Omicron variant of the coronavirus does not have a negative affect on cardiovascular health in young adults who have been vaccinated, a small study suggests.Earlier variants have had a detrimental affect on patients' hearts and blood vessels, and researchers expected to see similar patterns when they compared 23 young adults with Omicron breakthrough infections diagnosed within the past six weeks to 13 vaccinated young adults who never had COVID-19.
The finding that "not all variants may be detrimental to cardiovascular health in young, otherwise healthy adults... is all very promising," they said. "However, there is some recent evidence that cardiovascular health may still be impacted in the long term... Therefore, follow-up studies will be needed to determine long-term cardiovascular health outcomes."Women should not delay routine mammograms after receiving a COVID-19 mRNA vaccine, experts now say.
In some women, the vaccines cause swollen lymph nodes around the armpits, which could be misread as a possible sign of breast cancer on a mammogram. Early after the vaccines became available, the Society for Breast Imaging advised women to wait four-to-six weeks after the second shot before having a screening mammogram because it was thought the abnormalities would resolve by then.
. Women should not delay their mammograms for extended periods, the Society for Breast Imaging now says.directed at asymptomatic, average risk women with no history of breast cancer or lymph node cancer, the group now advises that if screening mammograms show the kind of lymph node abnormalities associated with the vaccines, the exams should be repeated six months later.