This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
In salmonolosis disease, isolation is done till 
Select and explain. 
A. Fever subsides, B. Blood culture negative, C. Stool culture negative for three times, D. Spleen subsides
C: Stool culture negative for three times
Answer: C: Stool culture negative for three times 
Explanation: None