ABSTRACT
A localized Chikungunya virus (CHIKV; East/Central/South African genotype) outbreak (50 cases, 70% laboratory-confirmed; attack rate: 5.3 confirmed cases/100 people) occurred in a Salvador, Brazil neighborhood, between Apr-Jun/2017. Highly clustered cases in space and time, mostly along a single street, highlight an increased risk of CHIKV transmission among pockets of susceptible populations. This finding underscores the need for ongoing local level surveillance for arboviral outbreaks.
Subject(s)
Chikungunya Fever/epidemiology , Chikungunya virus , Disease Outbreaks/statistics & numerical data , Adult , Brazil/epidemiology , Chikungunya Fever/diagnosis , Chikungunya Fever/virology , Chikungunya virus/genetics , Chikungunya virus/immunology , Enzyme-Linked Immunosorbent Assay , Female , Genotype , Humans , Male , Middle Aged , Phylogeny , Polymerase Chain Reaction , Seasons , Young AdultABSTRACT
A localized Chikungunya virus (CHIKV; East/Central/South African genotype) outbreak (50 cases, 70% laboratory-confirmed; attack rate: 5.3 confirmed cases/100 people) occurred in a Salvador, Brazil neighborhood, between Apr-Jun/2017. Highly clustered cases in space and time, mostly along a single street, highlight an increased risk of CHIKV transmission among pockets of susceptible populations. This finding underscores the need for ongoing local level surveillance for arboviral outbreaks.
