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Branco MSD, Sousa DMC, Sousa DMC, Monteiro JD, Costa DMP, Almeida Junior RF, Lima TLC, Farias KJS, Medeiros RC, Queiroz MGL, Gil LHVG, Fernandes JV, Nogueira RMR, Araújo JMG. Dengue in the State of Rio Grande do Norte, Brazil, 2010-2012. Trop Med Int Health 2015; 20:1707-10. [PMID: 26426773 DOI: 10.1111/tmi.12612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To present results of virological surveillance and epidemiological aspects of dengue in the State of Rio Grande do Norte, Brazil. METHODS A total of 1581 cases, reported from 2010 to 2012 at various health centres in the state, were analysed by viral isolation and/or RT-PCR for viral detection and typing. To identify whether different genotypes were circulating in the state during this period, sequencing of the complete E gene for DENV (1485 bp in length) was performed directly from patient serum samples. RESULTS All four serotypes of dengue virus circulated in Rio Grande do Norte, with the introduction of DENV-4 in the state in 2011. In 2012, DENV-4 represented 100% of positive confirmed cases. 53.97% of cases occurred in Natal. Case numbers peaked in April (21%) and May (23%). Genetic characterisation of circulating strains confirmed the circulation of genotypes V, south-east Asian/American and II, respectively, for DENV-1, DENV-2 and DENV-4. CONCLUSIONS This work furthers a better understanding of dengue viruses in the State of Rio Grande do Norte. Strengthening control efforts in the region is important considering the impact of dengue.
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Affiliation(s)
- Mário S D Branco
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil.,Laboratory of Flavivirus, Oswaldo Cruz Institute, Rio de Janeiro, Brazil
| | - Denise M C Sousa
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Daíse M C Sousa
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Joelma D Monteiro
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Diego M P Costa
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Renato F Almeida Junior
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Tábata L C Lima
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Kleber J S Farias
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | | | - Laura H V G Gil
- Department of Virology and Experimental Therapy, Aggeu Magalhães Research Center, Recife, Brazil
| | - José V Fernandes
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Rita M R Nogueira
- Laboratory of Flavivirus, Oswaldo Cruz Institute, Rio de Janeiro, Brazil
| | - Josélio M G Araújo
- Laboratory of Molecular Biology for Infectious Diseases and Cancer, Federal University of Rio Grande do Norte, Natal, Brazil
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