Which of the following diseases is carried by rodents?

Plague is the disease carried by rodents, primarily through fleas that infest these animals. The bacterium Yersinia pestis, responsible for the plague, can inhabit the body of rodents such as rats and mice. When fleas bite these rodents, they can become carriers and transmit the infection to humans through bites or through contact with infected tissues. The disease has historically caused significant outbreaks and is a prime example of zoonotic transmission, showing how diseases can jump from animals to humans.

In contrast, the other diseases listed do not have a direct association with rodents as carriers. Measles is a viral infection that is spread primarily through respiratory droplets from person to person. HIV/AIDS is a viral infection transmitted through specific body fluids and primarily affects humans without any rodent vector involvement. Influenza is also a viral infection that primarily spreads between humans and certain animals, but it is not associated with rodent carriers. Understanding the specific transmission routes and vectors for each disease highlights the unique role that certain animals play in public health.