Which is more virulent, Salmonella or Shigella?
Answer: Shigella. Less than 10 organisms are required for Shigella to cause infection because it is very resistant to stomach acid. Salmonella is not as resistant and requires 106 to 109 organisms to cause disease.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.