MỘT SỐ YẾU TỐ LIÊN QUAN ĐẾN PHẢN ỨNG THÔNG THƯỜNG SAU TIÊM MŨI 3 VẮC XIN PHÒNG BỆNH COVID-19 CỦA NGƯỜI DÂN ĐƯỢC TIÊM CHỦNG TẠI ĐIỂM TIÊM CHỦNG TRƯỜNG ĐẠI HỌC Y HÀ NỘI, NĂM 2022

Abstract

Objectives: to analyze some factors related to common reactions after Vaccination with 3rd doses of COVID-19 Vaccine among people Vaccinated at the Vaccination site of Hanoi Medical UniVersity in 2022. Methods: a cross-sectional description was performed on 721 study subjects during the period from January 2022 to October 2023. Results: the reaction rate after the 3rd injection was 60.9%, in which the reaction rate after the additional dose was 57.8%, and after the booster dose was 64.0%, the difference is not statistically significant (p>0.05). Post-injection reactions were more common in younger age groups, certain occupational groups, groups with a history of reactions following preVious injections, and groups with a history of chronic disease in booster dose subjects (p< 0.05). Gender, history of allergy, allergic disease, and type of Vaccine receiVed at the primary dose were not statistically significant with the response rate after after 3rd doses of Comirnaty Vaccine (Pfizer). Conclusion: the factors of age group, occupation, medical history in young people receiVing booster dose and history of allergy to preVious injections are significantly related to the reaction after 3rd doses of COVID-19 Vaccine, additional dose and booster dose, so it is important to carefully take the history in screening before deciding to Vaccinate.