Unrecognized Emergence of Chikungunya Virus during a Zika Virus Outbreak in Salvador, Brazil.

ABSTRACT:

Background

Chikungunya virus (CHIKV) entered Brazil in 2014, causing a large outbreak in Feira de Santana, state of Bahia. Although cases have been recorded in Salvador, the capital of Bahia, located ~100 km of Feira de Santana, CHIKV transmission has not been perceived to occur epidemically, largely contrasting with the Zika virus (ZIKV) outbreak and ensuing complications reaching the city in 2015.

Methodology/principal findings

This study aimed to determine the intensity of CHIKV transmission in Salvador between November 2014 and April 2016. Results of all the CHIKV laboratory tests performed in the public sector were obtained and the frequency of positivity was analyzed by epidemiological week. Of the 2,736 tests analyzed, 456 (16.7%) were positive. An increasing in the p

SUBMITTER: Cardoso CW 

PROVIDER: S-EPMC5289630 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature