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Clinical and Epidemiological Characterization of the First Recognized Outbreak of Dengue Virus-Type 2 in Mozambique, 2014
Since the first reported epidemic of dengue in Pemba, the capital of Cabo Delgado province, in 1984–1985, no further cases have been reported in Mozambique. In March 2014, the Provincial Health Directorate of Cabo Delgado reported a suspected dengue outbreak in Pemba, associated with a recent increase in the frequency of patients with nonmalarial febrile illness. An investigation conducted between March and June detected a total of 193 clinically suspected dengue patients in Pemba and Nampula, the capital of neighboring Nampula Province. Dengue virus-type 2 (DENV-2) was detected by reverse transcriptase polymerase chain reaction in sera from three patients, and 97 others were classified as probable cases based on the presence of DENV nonstructural protein 1 antigen or anti-DENV immunoglobulin M antibody. Entomological investigations demonstrated the presence of Aedes aegypti mosquitos in both Pemba and Nampula cities.
Author Notes
Authors' addresses: Marilia Massangaie, Gabriela Pinto, Fernando Padama, Geraldo Chambe, Mariana da Silva, and Inocêncio Mate, National Directorate of Public Health, Ministry of Health, Maputo, Mozambique, E-mails: mariliamassangaie@yahoo.com.br, gabbydocarmo@gmail.com, ferpadama@yahoo.com.br, geraldochambe@yahoo.com.br, m.sillva@yahoo.com.br, and inomate@yahoo.com.br. Celia Chirindza and Sadia Ali, Virus Isolation Laboratory, National Institute of Health, Maputo, Mozambique, E-mails: celia.chir@gmail.com and sadia.abdul.ali@gmail.com. Sãozinha Agostinho, Ministry of Health, Cabo Delgado Provincial Health Directorate, Pemba, Mozambique, E-mail: saozinhagostinho@gmail.com. Daniel Chilaule, Nampula Provincial Health Directorate, Ministry of Health, Nampula, Mozambique, E-mail: dachilaule@hotmail.com. Jacqueline Weyer and Chantel le Roux, National Institute for Communicable Diseases, Centre for Emerging and Zoonotic Diseases, Johannesburg, South Africa, E-mails: jacquelinew@nicd.ac.za and chantell@nicd.ac.za. Ana Paula Abilio, Cynthia Baltazar, and Eduardo Samo Gudo, National Institute of Health, Maputo, Mozambique, E-mails: anabilio1408@gmail.com, cynthiasema@yahoo.com, and esamogudojr@gmail.com. Timothy J. Doyle, Centers for Disease Control and Prevention, Center for Global Health, Maputo, Mozambique, E-mail: tdoyle@cdc.gov. Julie Cliff, Faculty of Medicine, Community Health Department, Maputo, Mozambique, E-mail: julie.cliff@gmail.com. Janusz Paweska, National Institute for Communicable Diseases, Special Pathogens Unit, Johannesburg, South Africa, E-mail: januszp@nicd.ac.za.