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Complete genome sequences of chikungunya virus strains isolated in Mexico: first detection of imported and autochthonous cases.

ABSTRACT: The mosquito-borne chikungunya virus, an alphavirus of the Togaviridae family, is responsible for acute polyarthralgia epidemics. Here, we report the complete genome sequences of two chikungunya virus strains, InDRE04 and InDRE51, identified in the Mexican states of Jalisco and Chiapas in 2014. Phylogenetic analysis showed that both strains belong to the Asian genotype.

SUBMITTER: Diaz-Quinonez JA

PROVIDER: S-EPMC4424286 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Complete genome sequences of chikungunya virus strains isolated in Mexico: first detection of imported and autochthonous cases.

Díaz-Quiñonez José Alberto JA Ortiz-Alcántara Joanna J Fragoso-Fonseca David Esaú DE Garcés-Ayala Fabiola F Escobar-Escamilla Noé N Vázquez-Pichardo Mauricio M Núñez-León Alma A Torres-Rodríguez María de la Luz Mde L Torres-Longoria Belem B López-Martínez Irma I Ruíz-Matus Cuitláhuac C Kuri-Morales Pablo P Ramírez-González José Ernesto JE

Genome announcements 20150507 3

The mosquito-borne chikungunya virus, an alphavirus of the Togaviridae family, is responsible for acute polyarthralgia epidemics. Here, we report the complete genome sequences of two chikungunya virus strains, InDRE04 and InDRE51, identified in the Mexican states of Jalisco and Chiapas in 2014. Phylogenetic analysis showed that both strains belong to the Asian genotype. ...[more]

PMID: 25953170

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Project description:BACKGROUND:Chikungunya virus (CHIKV) is a widespread mosquito-borne virus representing a serious challenge to public health. The largest outbreak in the Middle-East was recorded in 2016-2017 in Pakistan. Sistan and Baluchistan Province of Iran shares a wide border with Pakistan; accordingly, introduction of CHIKV from Pakistan to Iran seems to be probable. The current study is aimed at investigating CHIKV infection in Sistan and Baluchistan Province. METHODS:Between April 2017 and June 2018, a total of 159 serum samples of CHIK suspected cases from 10 cities of Sistan and Baluchistan Province were tested by molecular and serological assays. Samples obtained up to 4 days after onset of illness were tested by real time PCR (n = 8). Samples collected 5-10 days after disease onset were subjected to ELISA, as well as real time PCR tests (n = 72). Samples obtained after the 10th day of disease onset were tested by only ELISA (n = 79). Phylogenetic analysis of real time PCR positive samples was carried out by sequencing of a 1014-bp region of Envelope 1 gene (E1 gene). Chi-square and independent t tests were used to evaluate the association between variables and CHIKV infection. RESULTS:In total, 40 (25.1%) out of 159 samples tested positive either by real time PCR or ELISA tests.Out of 151 samples serologically analyzed, 19 (12.6%) and 28 (18.6%) cases were positive for anti-CHIKV IgM and anti-CHIKV IgG antibodies, respectively. Of 80 samples tested by real time PCR, CHIKV RNA was detected in 11 (13.7%) sera, all of them had recent travel history to Pakistan. Additionally, phylogenetic analysis of 5 samples indicated their similarity with recent isolates of Pakistan outbreak 2016-2017 belonging to Indian Ocean sub-lineage of ECSA genotype. A significant correlation between abroad travel history and CHIKV infection was observed (P < 0.001). The most common clinical symptoms included fever, arthralgia/arthritis, myalgia, headache, and chill. CONCLUSIONS:These results present substantial evidence of CHIKV introduction to Iran from Pakistan and emphasize the need for the enhancement of surveillance system and preventive measures.

Dataset Information

Complete genome sequences of chikungunya virus strains isolated in Mexico: first detection of imported and autochthonous cases.

Publications

Complete genome sequences of chikungunya virus strains isolated in Mexico: first detection of imported and autochthonous cases.

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