Đặc điểm dịch tễ học bệnh sởi khu vực miền Bắc Việt Nam, năm 2011

In 2011, 8960 suspected measles cases were investigated. There were 235 confirmed as measles (among them, 7 cases were confirmed by lab, 17 epi-link cases and 211 clinically confirmed cases) in the Northern region of Viet Nam. Dates of onset were from January to June 2011. Most of the cases were 10 - 14 years old (28.5 percent), 1 - 4 years old (25.5 percent) and 1 year old (10.6 percent). The measles cases were identified in 26 districts. A hot spot, cluster of districts with high number of measles cases were detected including Sop Cop, Song Ma, Thuan Chau, Mai Son, Son La districts. A small measles outbreak (23 cases) occurred in Huoi Duong village, lasted for 2 weeks with Basic reproductive number, Ro