Abstract:BACKGROUND COVID-19 vaccines help protect against infection, severe illness, hospitalization and death. When someone who is vaccinated with either a primary series or a primary series plus a booster dose gets infected with the virus that causes COVID-19, it is referred to as a vaccine breakthrough infection. OBJECTIVES To assess the frequency and clinical characteristics of breakthrough cases of COVID-19 infection and to study the predictive risk factors. SUBJECTS&METHODS A cross-sectional study was carrie… Show more
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