Stock Photo: VIROLOGY LABORATORY. VIROLOGY LABORATORY Photo essay from laboratory. Institut Pasteur. Department of virology. Unit of molecular genetics of Bunyaviridae. Group entomology Mosquito team. Research on the transmission of Chikungunya virus to mosquitoes Aedes albopictus and Aedes aegypti. Here, titration of the Chikungunya virus by counting the lysis plaques formed on the Vero cells. The Vero epithelial cell line is issue from the kidney of a vervet monkey Chlorocebus aethiops , it is used in the