Dynamics of chikungunya virus transmission in the first year after its introduction in Brazil: A cohort study in an urban community.

ABSTRACT:

Background

The first chikungunya virus (CHIKV) outbreaks during the modern scientific era were identified in the Americas in 2013, reaching high attack rates in Caribbean countries. However, few cohort studies have been performed to characterize the initial dynamics of CHIKV transmission in the New World.

Methodology/principal findings

To describe the dynamics of CHIKV transmission shortly after its introduction in Brazil, we performed semi-annual serosurveys in a long-term community-based cohort of 652 participants aged ≥5 years in Salvador, Brazil, between Feb-Apr/2014 and Nov/2016-Feb/2017. CHIKV infections were detected using an IgG ELISA. Cumulative seroprevalence and seroincidence were estimated and spatial aggregation of cases was investigated. The first CHIKV infecti

SUBMITTER: Anjos RO 

PROVIDER: S-EPMC10775974 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature