Question

QUESTIONS 1. What is "traveler's diarrhea?" 2. How might you acquire a Salmonella infection? 3. Why are Salmonella and Shigella notifiable diseases? What is the difference between food poisoning and food infection? Cite some organisms associated with each. 4. How are urinary tract infections detected in the clinical microbiology lab since the organisms most often responsible are frequendly found as normal flora in urine specimens? 5. 6. What is the most frequent STD in the United States currently?

Answer 1

1. Traveler's diarrhoea: it is the passing of stool 2/3 times or more in 24 hours by a person who is traveling. This mainly occurs due to stomaxk or intestinal infection that a traveller gets. The stool passed is normally unformed. The most common Bacteria responsible for this is ETEC.

2. We might acquire a Salmonella infection upon eating uncooked meat, or products that are not pasteurised properly etc.

3. ​​​​salmonella & Shigella both causes dysentrdy and does so mainly by forming toxins. Shigella causes bloody diarrhoea while this is less common in SakmonSalm infection.

4. Food poisoning as the name suggests happens due to presence of a " poison" or toxin formed by a microorganisms. Different toxins acts on human biolocibiosystem in different way.

Ex : Shiga toxin produced by Shigella causes food poisoning.

Food infection is when a microorganisms instead of producing toxin, invades our body and proliferates in the gut or our body causing food infection .

Ex : Salmonella