Edition Pdf — Ananthanarayan And Paniker 39-s Textbook Of Microbiology 12th

As she began her investigation, Dr. Aparna suspected that the cause might be a bacterial contaminant. She quickly gathered samples of the suspected food, as well as vomit and stool samples from the affected customers.

Dr. Aparna decided to culture the bacteria on selective media, such as MacConkey agar, to isolate the colonies. After overnight incubation, she observed that the colonies were lactose-fermenting, which suggested that the bacteria might be Escherichia coli. As she began her investigation, Dr

Dr. Aparna then performed a serotyping test to determine the specific strain of E. coli. The results revealed that the isolate belonged to the Enterotoxigenic E. coli (ETEC) pathotype, which was known to produce heat-labile and heat-stable toxins. As she began her investigation