Which of the following rodents is the most common host of the Hantavirus in Utah?

The deer mouse is recognized as the primary host of Hantavirus in Utah. This rodent is particularly significant because it is capable of shedding the virus in its urine, droppings, and saliva, which can then become aerosolized and inhaled by humans, leading to infection. The ecological preference of deer mice for rural and semi-rural areas increases their interaction with humans, especially in environments where people may come into contact with rodent droppings or nests.

In contrast, while other rodents like the house mouse, Norway rat, and field mouse may also carry various diseases, they are not as commonly associated with Hantavirus transmission as the deer mouse is. Each of these rodents has different habitats and behaviors that may lessen their potential to infect humans with Hantavirus compared to the deer mouse. Understanding the specific vectors and hosts of Hantavirus, such as the deer mouse, is crucial for effective prevention and control measures in pest management and public health.