Gastroenteritis
Gastroenteritis ( 21 Questions)
(From external source) Which bacteria produce enterotoxins that cause watery diarrhea in cases of bacterial gastroenteritis?
Salmonella and Campylobacter are known to cause bacterial gastroenteritis, but they typically do not produce enterotoxins that specifically cause watery diarrhea. Instead, they often cause more inflammatory types of diarrhea.
Shigella and Yersinia can also cause bacterial gastroenteritis, but their mechanisms of causing diarrhea are different from enterotoxin production. Shigella is known to cause bloody diarrhea, while Yersinia can lead to abdominal pain and fever.
Vibrio cholerae produces the cholera toxin, which leads to watery diarrhea by increasing chloride secretion and inhibiting sodium absorption in the intestines. Clostridium perfringens can produce enterotoxins that lead to watery diarrhea and abdominal cramps.
While E. coli can cause gastroenteritis, it usually produces Shiga toxins that lead to bloody diarrhea (as seen in E. coli O157:H7), or it may cause inflammation and not typically result in watery diarrhea. C. difficile is known for causing antibiotic-associated diarrhea and colitis, but it's not primarily associated with watery diarrhea.
Choice A rationale:
Salmonella and Campylobacter are known to cause bacterial gastroenteritis, but they typically do not produce enterotoxins that specifically cause watery diarrhea. Instead, they often cause more inflammatory types of diarrhea.
Choice B rationale:
Shigella and Yersinia can also cause bacterial gastroenteritis, but their mechanisms of causing diarrhea are different from enterotoxin production. Shigella is known to cause bloody diarrhea, while Yersinia can lead to abdominal pain and fever.
Choice C rationale:
Vibrio cholerae produces the cholera toxin, which leads to watery diarrhea by increasing chloride secretion and inhibiting sodium absorption in the intestines. Clostridium perfringens can produce enterotoxins that lead to watery diarrhea and abdominal cramps.
Choice D rationale:
While E. coli can cause gastroenteritis, it usually produces Shiga toxins that lead to bloody diarrhea (as seen in E. coli O157:H7), or it may cause inflammation and not typically result in watery diarrhea. C. difficile is known for causing antibiotic-associated diarrhea and colitis, but it's not primarily associated with watery diarrhea.