Severe Dengue Epidemics in Sri Lanka, 2003–2006

Recent emergence of dengue hemorrhagic fever in the Indian subcontinent has been well documented in Sri Lanka. We compare recent (2003–2006) and past (1980–1997) dengue surveillance data for Sri Lanka. The 4 dengue virus (DENV) serotypes have been cocirculating in Sri Lanka for >30 years. Over th...

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Detalles Bibliográficos
Autores principales: Kanakaratne, Nalaka, Wahala, Wahala M.P.B., Messer, William B., Tissera, Hasitha A., Shahani, Aruna, Abeysinghe, Nihal, de Silva, Aravinda M., Gunasekera, Maya
Formato: Texto
Lenguaje:English
Publicado: Centers for Disease Control and Prevention 2009
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662655/
https://www.ncbi.nlm.nih.gov/pubmed/19193262
http://dx.doi.org/10.3201/eid1502.080926
Descripción
Sumario:Recent emergence of dengue hemorrhagic fever in the Indian subcontinent has been well documented in Sri Lanka. We compare recent (2003–2006) and past (1980–1997) dengue surveillance data for Sri Lanka. The 4 dengue virus (DENV) serotypes have been cocirculating in Sri Lanka for >30 years. Over this period, a new genotype of DENV-1 has replaced an old genotype. Moreover, new clades of DENV-3 genotype III viruses have replaced older clades. Emergence of new clades of DENV-3 in 1989 and 2000 coincided with abrupt increases in the number of reported dengue cases, implicating this serotype in severe epidemics. In 1980–1997, most reported dengue cases were in children. Recent epidemics have been characterized by many cases in children and adults. Changes in local transmission dynamics and genetic changes in DENV-3 are likely increasing emergence of severe dengue epidemics in Sri Lanka.

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