Figures 3a and 3b: Rotating rack of viral culture tubes (3a). A few drops of the specimen collected in VTM are dropped into these glass tubes (3b) containing growth media for the virus. The tubes for influenza culture will contain a monolayer of Madin-Darby Canine Kidney-derived (MDCK) cells that is optimal for influenza virus culture
(a)
 
(b)