The main aim of this study is to collect the number and type of medical problems (adverse events) after vaccination with QDENGA in Malaysia and to learn more about such medical problems after vaccination. Another aim of this study is to collect the number of persons vaccinated with QDENGA who need to stay in the hospital because of severe dengue fever. No vaccination will be given as part of this study. The study will only collect data of persons already vaccinated with QDENGA who agree to participate.
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Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)
Timeframe: From 14 days after first vaccination up to 15 months