Affiliation: | a National Vaccine Institute (NVI), Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand b Bureau of Epidemiology, Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand c Department of Labour Protection and Welfare, Ministry of Labour, Bangkok 10400, Thailand d Expanded Program on Immunization, Bureau of General Communicable Disease, Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand e National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand |