Epidemiology of Japanese encephalitis in the Philippines: a systematic review

PLoS Neglected Tropical Diseases
Anna Lena LopezKimberley K Fox

Abstract

Japanese encephalitis virus (JEV) is an important cause of encephalitis in most of Asia, with high case fatality rates and often significant neurologic sequelae among survivors. The epidemiology of JE in the Philippines is not well defined. To support consideration of JE vaccine for introduction into the national schedule in the Philippines, we conducted a systematic literature review and summarized JE surveillance data from 2011 to 2014. We conducted searches on Japanese encephalitis and the Philippines in four databases and one library. Data from acute encephalitis syndrome (AES) and JE surveillance and from the national reference laboratory from January 2011 to March 2014 were tabulated and mapped. We identified 29 published reports and presentations on JE in the Philippines, including 5 serologic surveys, 18 reports of clinical cases, and 8 animal studies (including two with both clinical cases and animal data). The 18 clinical studies reported 257 cases of laboratory-confirmed JE from 1972 to 2013. JE virus (JEV) was the causative agent in 7% to 18% of cases of clinical meningitis and encephalitis combined, and 16% to 40% of clinical encephalitis cases. JE predominantly affected children under 15 years of age and 6% to 7% ...Continue Reading

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Citations

Apr 22, 2017·The Pediatric Infectious Disease Journal·Katrin L DubischarKerstin Westritschnig
Jun 12, 2020·The American Journal of Tropical Medicine and Hygiene·Marilyn Charlene Montini MaludaKamruddin Ahmed
Nov 18, 2018·Viruses·Jichen NiuRuibing Cao
Dec 20, 2019·Emerging Infectious Diseases·Ryusei KuwataKen Maeda
Jul 1, 2018·Current Infectious Disease Reports·John P CaldwellDavidson H Hamer
Nov 1, 2020·International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases·Anna Lena LopezMaria Wilda T Silva

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