Le Thi Thanh Xuan, Quan Long Hoang, Nhung Thi Kim Ta, Quan Thi Pham, Thao Thanh Nguyen, Huong Thi Mai Phan, Thanh Van Nguyen, Ha Thi Thanh Le, Nam Thuy Nguyen, Linh Dieu Hoang, Phuong Thi Huyen Luong, Lien Hong An, Thu Ha Nguyen, Thinh Thi Nguyen, Hien Thuy Nguyen, Huong Thu Le, Doanh Qu
Frontiers in Tropical Diseases
Rationale: To prevent and control the COVID-19 pandemic, the biggest immunization campaign in history had been deployed worldwide. Therefore, it is important to inform the adverse events following immunization (AEFI) to populations. Objectives: To prevent vaccine hesitancy, this study focused on finding the common AEFI with the COVID-19 Comirnaty vaccine (Pfizer-BioNTech) among participants aged 18 and above and related factors in Hanoi, Vietnam. Methods: A cross-sectional study was carried out to collect participants’ data and AEFI after being vaccinated at Hanoi Medical University, Vietnam, in 2021. Logistic regression was utilized for analyzing the correlated factors of AEFI. Results: We recruited a random sample of 820 participants who received both basic doses of Pfizer vaccine in September and October 2021. The proportion of AEFI after the first dose, second dose, and both doses of Pfizer vaccine was 24.4%, 64.2%, and 18.5%, respectively. AEFI mostly appeared within 1 day and lasted for 1 to 2 days. The AEFI were more common in females (OR=1.7; 95% CI=1.25–2.29) and younger age groups (OR=1.9; 95%CI=1.37–2.58). History of allergy, allergic diseases, chronic diseases, and occupations were not statistically significant with AEFI Conclusion: Our findings indicated that the COVID-19 Comirnaty vaccine
is safe to be injected. Gender and age group are important factors
influencing AEFI.
Dinh Thai Son, Phan Thanh Hai, Dam Thao Van, Nguyen Hoang Mai Anh, Phan Ngoc Han, Nguyen Minh Huong, Vu Ha Nhi, Nguyen Phuong Thao, Nguyen Thi Thanh Binh, Chu Thuy Quynh, Luu Ngoc Minh, Le Xuan Hung, Do Thi Thanh Toan, Pham Quang Thai
Tạp chí Y học cộng đồng
Currently the epidemic caused by Coronavirus (COVID-19) has adversely affected many countries, facilitating the vaccination program worldwide. However, whether or not to vaccinate is still controversial, including Vietnam. We recognize that the different attitudes of people after reading the information regarding the COVID vaccine may partly influence the decision to use the vaccine in the future. This study aims to investigate the attitudes of Vietnamese people on the Internet by 2020. We searched for articles on mainstream media online newspapers in Vietnam. Then proceed to collect and classify comments from electronic articles based on the set criteria. Articles containing information regarding the COVID-19 vaccine from early January to early December 2020 in Vietnam. There were 273 articles including 8711 comments related to COVID-19 vaccines compiled. The percentage of supportive comments related to vaccines was 14,3%, which was 6 times higher than the proportion of negative comments (2,4%). The topic with the most supportive comments is the results of the vaccine (20.3%). In the topic of articles, the highest proportion of agreeable comments was in the results of vaccines (20.3%) and the second-highest was in the process of vaccines (17.1%). The percentage of unagreeable comments in the origin of vaccines was higher than that in the process of vaccines with 2.8% and 2.6% each. The proportion of unagreeable comments in the results of vaccines was the lowest at 1.3%. Our research has shown evidence of the attitudes of Vietnamese about the COVID 19 vaccine through electronic articles
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