Dengue Fever and Severe Dengue in Barbados, 2008-2016.
Barbados
Caribbean
DENV
arbovirus
dengue
epidemics
epidemiology
genetic sequencing
public health
severe dengue
Journal
Tropical medicine and infectious disease
ISSN: 2414-6366
Titre abrégé: Trop Med Infect Dis
Pays: Switzerland
ID NLM: 101709042
Informations de publication
Date de publication:
02 May 2020
02 May 2020
Historique:
received:
31
03
2020
revised:
26
04
2020
accepted:
29
04
2020
entrez:
7
5
2020
pubmed:
7
5
2020
medline:
7
5
2020
Statut:
epublish
Résumé
Analysis of the temporal, seasonal and demographic distribution of dengue virus (DENV) infections in Barbados was conducted using national surveillance data from a total of 3994 confirmed dengue cases. Diagnosis was confirmed either by DENV-specific real time reverse transcriptase polymerase chain reaction (rRT-PCR), or non-structural protein 1 (NS1) antigen or enzyme linked immunosorbent assay (ELISA) tests; a case fatality rate of 0.4% (10/3994) was observed. The prevalence rate of dengue fever (DF) varied from 27.5 to 453.9 cases per 100,000 population among febrile patients who sought medical attention annually. DF cases occurred throughout the year with low level of transmission observed during the dry season (December to June), then increased transmission during rainy season (July to November) peaking in October. Three major dengue epidemics occurred in Barbados during 2010, 2013 and possibly 2016 with an emerging three-year interval. DF prevalence rate among febrile patients who sought medical attention overall was highest among the 10-19 years old age group. The highest DF hospitalisation prevalence rate was observed in 2013. Multiple serotypes circulated during the study period and Dengue virus serotype 2 (DENV-2) was the most prevalent serotype during 2010, whilst DENV-1 was the most prevalent serotype in 2013. Two DENV-1 strains from the 2013 DENV epidemic were genetically more closely related to South East Asian strains, than Caribbean or South American strains, and represent the first ever sequencing of DENV strains in Barbados. However, the small sample size (
Identifiants
pubmed: 32370128
pii: tropicalmed5020068
doi: 10.3390/tropicalmed5020068
pmc: PMC7345827
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Artemis One Health
ID : 1-231/123
Organisme : University of the West Indies
ID : 190121-312
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