A case report on symptomatic disease caused by serotype 4 vaccine virus following tetravalent anti-dengue vaccination.

Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Julio Croda reports a relationship with Takeda Pharmaceutical Company Limited that includes: funding grants, honoraria to participate in the Global Steering Committee and Brazilian Advisory Boarding. Roberto Dias de Oliveira reports a relationship with Takeda Pharmaceutical Company Limited that includes: funding grants. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.