BibTex format
@article{Moreira:2023:10.1371/journal.pntd.0011536,
author = {Moreira, FRR and Menezes, MTD and Salgado-Benvindo, C and Whittaker, C and Cox, V and Chandradeva, N and Paula, HHSD and Martins, AF and Chagas, RRD and Brasil, RDV and Cândido, DDS and Herlinger, AL and Ribeiro, MDO and Arruda, MB and Alvarez, P and Tôrres, MCDP and Dorigatti, I and Brady, O and Voloch, CM and Tanuri, A and Iani, F and Souza, WMD and Cardozo, SV and Faria, NR and Aguiar, RS},
doi = {10.1371/journal.pntd.0011536},
journal = {PLoS Neglected Tropical Diseases},
title = {Epidemiological and genomic investigation of chikungunya virus in Rio de Janeiro state, Brazil, between 2015 and 2018},
url = {http://dx.doi.org/10.1371/journal.pntd.0011536},
volume = {17},
year = {2023}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Since 2014, Brazil has experienced an unprecedented epidemic caused by chikungunya virus (CHIKV), with several waves of East-Central-South-African (ECSA) lineage transmission reported across the country. In 2018, Rio de Janeiro state, the third most populous state in Brazil, reported 41% of all chikungunya cases in the country. Here we use evolutionary and epidemiological analysis to estimate the timescale of CHIKV-ECSA-American lineage and its epidemiological patterns in Rio de Janeiro. We show that the CHIKV-ECSA outbreak in Rio de Janeiro derived from two distinct clades introduced from the Northeast region in mid-2015 (clade RJ1, n = 63/67 genomes from Rio de Janeiro) and mid-2017 (clade RJ2, n = 4/67). We detected evidence for positive selection in non-structural proteins linked with viral replication in the RJ1 clade (clade-defining: nsP4-A481D) and the RJ2 clade (nsP1-D531G). Finally, we estimate the CHIKV-ECSA's basic reproduction number (R0) to be between 1.2 to 1.6 and show that its instantaneous reproduction number (Rt) displays a strong seasonal pattern with peaks in transmission coinciding with periods of high Aedes aegypti transmission potential. Our results highlight the need for continued genomic and epidemiological surveillance of CHIKV in Brazil, particularly during periods of high ecological suitability, and show that selective pressures underline the emergence and evolution of the large urban CHIKV-ECSA outbreak in Rio de Janeiro.
AU - Moreira,FRR
AU - Menezes,MTD
AU - Salgado-Benvindo,C
AU - Whittaker,C
AU - Cox,V
AU - Chandradeva,N
AU - Paula,HHSD
AU - Martins,AF
AU - Chagas,RRD
AU - Brasil,RDV
AU - Cândido,DDS
AU - Herlinger,AL
AU - Ribeiro,MDO
AU - Arruda,MB
AU - Alvarez,P
AU - Tôrres,MCDP
AU - Dorigatti,I
AU - Brady,O
AU - Voloch,CM
AU - Tanuri,A
AU - Iani,F
AU - Souza,WMD
AU - Cardozo,SV
AU - Faria,NR
AU - Aguiar,RS
DO - 10.1371/journal.pntd.0011536
PY - 2023///
SN - 1935-2727
TI - Epidemiological and genomic investigation of chikungunya virus in Rio de Janeiro state, Brazil, between 2015 and 2018
T2 - PLoS Neglected Tropical Diseases
UR - http://dx.doi.org/10.1371/journal.pntd.0011536
UR - https://www.ncbi.nlm.nih.gov/pubmed/37769008
VL - 17
ER -