Vaccines; Today

In a recent study that represents the largest to date to examine the severity of the SARS-CoV-2 Omicron BA.2 subvariant (the strain making a re-emergence this fall), a team led by investigators at Massachusetts General Hospital (MGH)…

Based on an antibody study, dried samples of easily self-collected saliva and of blood drawn from the fingertip could be useful for monitoring people's immune responses to vaccination. In a study by the University of Helsinki and HUS…

Additional booster doses of vaccine against COVID-19 are particularly important for those who are immunosuppressed, namely those who have had solid organ transplants, a new study shows. The study, published in the Journal of Infectious…

Vaccine-associated myocarditis shows a similar injury pattern on cardiac MRI compared to other causes of myocarditis, but abnormalities are less severe, according to a new study published in the journal Radiology. Myocarditis, or…

A nationwide study from the U.S. Centers for Disease Control and Prevention (CDC) is the first to show that immunity against severe COVID-19 disease begins to wane 4 months after receipt of the third dose of an mRNA vaccine (Pfizer or…

The clinical and imaging characteristics of COVID-19 breakthrough infections in fully vaccinated patients tend to be milder than those of partially vaccinated or unvaccinated patients, according to a new multicenter study published in the…