This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Polio virus is shed in stool up to - 
Select and explain. 
A. 6 weeks, B. 8 weeks, C. 10 weeks, D. 12 weeks
D: 12 weeks
Answer: D: 12 weeks 
Explanation: - the polio is transmitted by faecal oral route by contaminmates food , water or hands. - in faeces, the virus is excreted as long as 3-4 months. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:205 <\p>