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. 2010 Mar;82(3):505-7.
doi: 10.4269/ajtmh.2010.09-0435.

Different lineages of Chikungunya virus in Equatorial Guinea in 2002 and 2006

Ximena Collao  1 , Ana I Negredo, Jorge Cano, Antonio Tenorio, Fernando de Ory, Agustin Benito, Mar Masia, María-Paz Sánchez-Seco
Affiliations

Different lineages of Chikungunya virus in Equatorial Guinea in 2002 and 2006

Ximena Collao et al. Am J Trop Med Hyg. 2010 Mar.

Abstract

Chikungunya virus is a mosquito-borne virus that causes an acute febrile infection and severe arthralgia and is considered a re-emergent pathogen. During a study investigating arboviruses causing febrile infection in infants in Bata, Equatorial Guinea, the genome of this virus was amplified from blood samples during near two rainy seasons (2002-2003). In 2006, this virus was isolated from a traveler returning to Spain from Equatorial Guinea. These results show that chikungunya virus is present in this country and two lineages are circulating. Thus, this virus should be considered in the differential diagnosis of febrile syndromes in inhabitants and in travelers returning from this country.

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Figures

F<sc>igure</sc> 1.
Figure 1.
Phylogenetic tree showing the relationships of chikungunya virus (CHIK) strains. A 434-basepair fragment from the envelope 1 gene was analyzed by using the neighbor-joining method, the number of differences model, and bootstrap percentage corresponding to 1,000 replicates with the MEGA 4 software. O'nyong nyong virus (ONNV) was used as an outgroup. Accession number, name of the strain, and place and year of isolation are indicated. Strains sequenced in this paper are shown in bold. Bootstrap values > 80 are shown.
See this image and copyright information in PMC

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