This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
Viral gastroenteritis may be caused by all of the following in infant and young children except 
Select and explain. 
A. Enterovirus, B. Coronavirus, C. Calcivirus, D. Adenovirus
A: Enterovirus
Answer: A: Enterovirus 
Explanation: Coronavirus may cause enteritis or colitis in neonates and infants. Calcivirus is best known for causing large, explosive diarrhea outbreaks among older children and adults. Enteric adenovirus are a common cause of viral gastroenteritis in infants and children causing mild to moderate watery winter diarrhea. Reference: Nelson textbook of pediatrics 19th edition Page 1134 & 1135