What is a common cause of gastroenteritis in children?

Gastroenteritis in children can be caused by various infectious agents, making the option that encompasses all possible causes the most accurate. Viral infections, particularly from rotaviruses, noroviruses, and adenoviruses, are among the most frequent causes of gastroenteritis in this population and account for the majority of cases. Bacterial infections, such as those caused by Salmonella, Shigella, and Campylobacter, also play a significant role, especially in more severe instances or outbreaks. Protozoal infections, while less common compared to viral and bacterial infections, can still lead to gastroenteritis—examples include Giardia lamblia and Cryptosporidium species.

Recognizing that all these pathogens can result in gastroenteritis allows for comprehensive understanding and proper management of the disease in pediatric patients. Thus, the correct response rightly acknowledges that both viral and bacterial infections are prevalent causes, along with protozoal infections, making it essential to consider all these factors when evaluating the etiology of gastroenteritis in children.