Hamadan University of Medical Sciences Journal of Education and Community Health 2820-896X 8 4 2021 12 30 Knowledge, Attitude, Practice and Acceptance of COVID-19 Vaccine among Elderly in Chiang Mai, Thailand 245 251 10.52547/jech.8.4.245 EN Jukkrit Wungrath https://orcid.org/0000-0001-5763-2365 Autorn Nattapong Kumai Nuttida Journal Article 10.52547/jech.8.4.245 2021 08 21 2021 10 18 Aims: This study determined the knowledge, attitudes, and practices regarding COVID-19 and assessed the acceptance of the COVID-19 vaccine among the elderly in Chiang Mai, Thailand. Instrument & Methods: From February to May 2021, a cross-sectional study was conducted among 450 elderly 60 years old and above who lived in Chiang Mai Municipality. The questionnaire collected demographic characteristics, knowledge, attitude, practice about COVID-19, and acceptance of the COVID-19 vaccine. Descriptive statistics are used to analyze. Findings: The results showed that 48.4% of the participants were male, 51.6% were female, and the mean±SD age was 68.2±7.3 years. Participants have sufficient knowledge, attitude, and practice about COVID-19, and the mean±SD score is 9.7±1.3, 4.2±0.8, and 3.98±0.5, respectively. The mean±SD score of the knowledge, attitude, and acceptance of the COVID-19 vaccine were 4.3±1.4, 2.9±1.9, and 2.2±0.9, respectively. This study's major issue is 95.1% of people strongly agree that maintaining social distancing can protect them and their families from contracting COVID-19, and 92.7% strictly follow the guidelines to prevent the spread of COVID-19. The policy can ultimately control the disease. 81.3% of respondents acknowledged vaccines are vital to the health of the elderly and believe that vaccination can reduce morbidity and mortality. Also, 75.8% of people know that the COVID-19 vaccine can cause side effects. Conclusion: The elderly in Chiang Mai, Thailand, have adequate knowledge and awareness about COVID-19 and are generally optimistic about resolving the pandemic and addressing the public concerns, raising awareness about COVID-19 vaccination as a disease-control method to prevent further deterioration of general public health due to COVID-19.