TY - JOUR AU - Sharp, Tyler AU - Moreira, Rosa AU - Soares, Maria José AU - Miguel da Costa, Lúis AU - Mann, Jennifer AU - Delorey, Mark AU - Hunsperger, Elizabeth AU - Muñoz-Jordán, Jorge AU - Colón, Candimar AU - Margolis, Harold AU - de Caravalho, Adelaide AU - Tomashek, Kay T1 - Underrecognition of Dengue during 2013 Epidemic in Luanda, Angola T2 - Emerging Infectious Disease journal PY - 2015 VL - 21 IS - 8 SP - 1311 SN - 1080-6059 AB - During the 2013 dengue epidemic in Luanda, Angola, 811 dengue rapid diagnostic test–positive cases were reported to the Ministry of Health. To better understand the magnitude of the epidemic and identify risk factors for dengue virus (DENV) infection, we conducted cluster surveys around households of case-patients and randomly selected households 6 weeks after the peak of the epidemic. Of 173 case cluster participants, 16 (9%) exhibited evidence of recent DENV infection. Of 247 random cluster participants, 25 (10%) had evidence of recent DENV infection. Of 13 recently infected participants who had a recent febrile illness, 7 (54%) had sought medical care, and 1 (14%) was hospitalized with symptoms consistent with severe dengue; however, none received a diagnosis of dengue. Behavior associated with protection from DENV infection included recent use of mosquito repellent or a bed net. These findings suggest that the 2013 dengue epidemic was larger than indicated by passive surveillance data. KW - Dengue KW - Angola KW - epidemic KW - cluster KW - surveillance DO - 10.3201/eid2108.150368 UR - https://wwwnc.cdc.gov/eid/article/21/8/15-0368_article ER - End of Reference