All spread by feco-oral route EXCEPT: March 2013
**Core Concept**
The feco-oral route is a common mode of transmission for various infectious diseases, where pathogens are ingested through contaminated food, water, or hands that have come into contact with fecal matter. This route is particularly relevant for enteric pathogens that cause gastrointestinal infections.
**Why the Correct Answer is Right**
The feco-oral route is characteristic of diseases caused by pathogens such as *Escherichia coli* (E. coli), *Shigella*, *Salmonella*, and *Rotavirus*, which are commonly transmitted through contaminated food, water, or hands. These pathogens are typically shed in the feces of infected individuals and can be ingested through inadequate hand hygiene, contaminated food, or water. The correct answer would be a disease that is not transmitted through the feco-oral route.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is a disease that is transmitted through the feco-oral route. *E. coli* is a common cause of urinary tract infections but can also cause gastrointestinal infections, which are transmitted through the feco-oral route.
* **Option B:** This option is incorrect because it is a disease that is transmitted through the feco-oral route. *Shigella* is a classic example of a pathogen that causes dysentery, which is transmitted through the feco-oral route.
* **Option C:** This option is incorrect because it is a disease that is transmitted through the feco-oral route. *Salmonella* is a common cause of food poisoning, which is transmitted through the feco-oral route.
* **Option D:** This option is correct because *Tuberculosis* is primarily transmitted through respiratory droplets, not the feco-oral route.
**Clinical Pearl / High-Yield Fact**
The feco-oral route is a key mode of transmission for many infectious diseases, emphasizing the importance of proper hand hygiene and sanitation in preventing the spread of these diseases.
**Correct Answer:** D. Tuberculosis.