IMAGE OF SCIENCE

CHIK colours

© Inserm/Institut Pasteur
© Inserm/Institut Pasteur

In spite of its harmless-sounding nickname, ‘CHIK’, or chikungunya, is still a source of concern and a challenge for researchers, who are working to improve diagnostic tools, sequence virus strains and improve their understanding of the factors determining the virulence of the different strains. In the above image, fluorescence microscopy is used to detect the chikungunya virus in cultured human cells. Using the Hoechst fluorescent stain, the nuclei appear blue under the microscope, while the Cy3 fluorophore shows the viral antigens as orange.



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