Which of the following complications is associated with severe rotavirus infection?

Severe rotavirus infection is primarily associated with dehydration. Rotavirus is known to cause acute gastroenteritis, which results in severe diarrhea and vomiting. The loss of fluids and electrolytes can occur rapidly, especially in young children, leading to acute dehydration. This condition can become life-threatening if not addressed quickly, as inadequate fluid replacement may lead to complications such as shock, renal failure, and even death.

While other complications can arise from different infections or diseases, they are not the primary concern with rotavirus. Neurological symptoms, cardiac arrest, and liver damage are not recognized as common complications of rotavirus infection. The focus on dehydration underscores the importance of prompt fluid management in patients with suspected or confirmed severe rotavirus gastroenteritis.