Alipon, SweetC B., Yoshihiro Takashima, Tigran Avagyan, Varja Grabovac, Syeda Kanwal Aslam, Benjamin Bayutas, Josephine Logronio, Xiaojun Wang, Achyut Shrestha, Sukadeo Neupane, Maria Concepcion Roces, Lea Necitas Apostol, and Nemia Sucaldito. “Emergence of Vaccine-Derived Poliovirus Type 2 After Using Monovalent Type 2 Oral Poliovirus Vaccine in an Outbreak Response, Philippines: Emergent VDPV2 After MOPV2 Use in the Philippines”. Western Pacific Surveillance and Response 13, no. 2 (May 25, 2022): 7. Accessed May 3, 2024. https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/904.