COVID-19 Vaccine EfficacyCOVID-19 Vaccine EfficacyStudyinfections in vaccinated populations.Investigation of breakthroughInfectious Diseases (except HIV/AIDS)Understanding COVID-19 Breakthrough Infections in Vaccinated IndividualsStudy reveals factors influencing breakthrough infections amid the Omicron variant.2025-08-13T18:50:30+00:00 ― 6 min read