You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A person returns to Delhi from Bangladesh after 2 days and has diarrhoea. Stool examination shows RBCs in Stool. The likely organism causing is ? and explain in detail?
Ans. is 'd' i.e., Shigella Dysentriae . The person is suspected to have traveller's diarrhoea. . The most common cause of traveller's diarrhoea is E.coli , but the strains of the E.coli (Enterotoxigenic & Enteropathogenic) given in the choice do not produce invasive illness i.e presence of blood in stool. . It is a feature of Enterohemorrhagic E.coli . Now the choice is between Salmonella & Shigella diarrhoea are . Both these organisms produce invasive disease i.e dysentery or inflammatory diarrhoea . But Shigella & Salmonella can be differentiated on the basis of incubation period. i) Shigella (1-2days) ii) Salmonella --)0. (10-14 days)