Introducing seasonal influenza vaccine in low‐income countries: an adverse events following immunization survey in the Lao People's Democratic Republic |
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| Authors: | Manilay Phengxay Sara A Mirza Rita Reyburn Anonh Xeuatvongsa Christian Winter Hannah Lewis Sonja J Olsen Reiko Tsuyuoka Viengphone Khanthamaly Francisco S Palomeque Joseph S Bresee Ann C Moen Andrew L Corwin the Lao PDR Field Epidemiology Training Cohort Team |
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| Institution: | 1. Lao PDR Country Office Western Pacific Regional Office WHO, Vientiane, Lao People's Democratic Republic;2. Influenza Division, U.S. Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA;3. National Immunization Program, Lao PDR Ministry of Health, Vientiane, Lao People's Democratic Republic;4. Lao PDR Country Office, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA |
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| Abstract: | ObjectiveIn 2012, Lao PDR introduced seasonal influenza vaccine in pregnant women, persons aged ≥50 years, persons with chronic diseases, and healthcare personnel. We assessed adverse events following immunization (AEFI).MethodsWe used a multistage randomized cluster sample design to interview vaccine recipients.FindingsBetween April and May 2012, 355 902 were vaccinated. Of 2089 persons interviewed, 261 (12·5%) reported one or more AEFI. The most commonly reported AEFIs were local reactions. No hospitalizations or deaths were reported; 16% sought medical care. Acceptance and awareness of vaccination were high.ConclusionsFollowing the introduction of seasonal influenza vaccine in Lao PDR, self-reported adverse events were mild. |
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| Keywords: | Adverse events following immunization influenza vaccine Lao PDR |
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