Update: Ongoing Zika Virus Transmission - Puerto Rico, November 1, 2015-April 14, 2016. - Dirlikov, Emilio; Ryff, Kyle R.; Torres-Aponte, Jomil; Thomas, Dana L.; Perez-Padilla, Janice; Munoz-Jordan, Jorge; Caraballo, Elba V.; Garcia, Myriam; Segarra, Marangely Olivero; Malave, Graciela; Simeone, Regina M.; Shapiro-Mendoza, Carrie K.; et al. (MMWR: Morbidity & Mortality Weekly Report, 2016)