haemadsorption Influenza and parainfluenza viruses do not ordinarily induce CPE, however they possess haemagglutinins and thus the ability to absorb guinea pig RBCs as they bud from the cell. This phenomenon is known as haemadsorption. Commonly employed cell cultures include primary monkey kidney, LLC-MK2 and MDCK cells. The cell cultures are incubated with a suspension of guinea pig RBCs at 4oC or RT for 30 minutes. The unabsorbed RBCs are then removed and the cell sheet observed microscopically for the presence of haemadsorption. PERSON: Melanie Courtot WEB: http://virology-online.com/general/Test1.htm the absorption of red blood cells by haemagglutinins viral isolate