Even after what seems to be a thorough cleaning and disinfection, harmful bacteria may survive on endoscopes potentially, researchers reported. ‘Colonoscopes and gastroscopes can harbor residual organic material, including viable microbes, even though adherence with recommended reprocessing guidelines is verified, ‘ concluded a group led by Cori Ofstead, of & Associates in St Ofstead. Paul, Minn. In the scholarly study, the researchers examined 15 colonoscopes and gastroscopes used in gastrointestinal procedures after they underwent each step of recommended cleaning guidelines between their use in different patients. Those steps included: bedside cleaning; manual washing in dedicated reprocessing areas; and automated washing with a high-level disinfectant.Weinberg, Ph.D., Daniel K. Daniel K.D. Weissman, M.D. Zon, M.D.D., Rebecca C.D., Ph.D. Parada, Ph.D., professor and chairman, Diana K and Richard C. Strauss Distinguished Chair in Developmental Biology; Director, Kent Waldrep Foundation Center for Basic Neuroscience Research; Southwestern Ball Distinguished Chair in Nerve Regeneration Research, University of Texas Southwestern INFIRMARY.. $10.3 million biodefense contract to tackle salmonella, typhoid fever and monkey pox virus Pacific Northwest Nationwide Laboratory has received a $10.3 million biodefense contract from the National Institute of Allergies and Infectious Agents to recognize the proteins that regulate the bacteria that cause salmonella poisoning and typhoid fever, and the monkey pox virus.