'I was terrified for my child': understanding the link between the Dengvaxia® controversy and the measles vaccine hesitancy in Pasay City, Philippines.

BACKGROUND: The Dengvaxia® (dengue vaccine) controversy has been identified as one of the main reasons for the measles vaccine hesitancy in the Philippines. Our study aimed to identify various issues related to the Dengvaxia® controversy and to link these issues with the social perspective of measles vaccine refusal.

METHODS: Semi-structured interviews and a focus group discussion using ethnography research were conducted with 41 parents and healthcare workers in Pasay City. Using Victor Turner's Social Drama Theory, our study identified existing social issues relating to the different angles of the Dengvaxia® controversy and the measles vaccine hesitancy.

RESULTS: Misinformation on the failed Dengvaxia® rollout implementation has challenged the fundamental understanding of the importance of immunization programs. Our findings on vaccine hesitancy in the community showed a complex problem with compounded factors, including medical populism, moral panics and other social views. We described how Pasay City's clinic waiting room became a significantly important scenario where individuals often discuss information, concerns and experiences on vaccines and vaccine hesitancy.

CONCLUSION: Our study suggests that the Dengvaxia® controversy may reduce the measles vaccination confidence in the Philippines. Lack of transparency played a crucial role in this dilemma, producing a cascading effect on the other vaccines' safety.