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The Daily Insight

What happens if you breathe in rat feces?

Author

Matthew Wilson

Updated on April 24, 2026

Hantavirus is a rare viral disease that can damage the heart, lungs and other organs so they cannot function properly. It is also called hantavirus cardiopulmonary syndrome (HCPS). People get this illness when they inhale or come into contact with infected rodent droppings, urine or saliva. HPS progresses quickly.

What diseases can you get from rat feces?

Anyone who comes into contact with infected rodent droppings, urine, saliva, nesting materials, or particles from these, can get hantavirus disease. Exposure to poorly ventilated areas with active rodent infestations in households, is the strongest risk factor for infection.

Can you get sick from being around rat droppings?

Diseases caused by rats can be transmitted through bites or scratches. Rat feces illness can be transmitted to humans through rat droppings and urine left around your home. Humans can also get sick through contaminated food caused by rats running across countertops where food is later prepared.

Do rats carry airborne diseases?

Hantavirus is transmitted to humans when they inhale airborne particles from rodent droppings, urine or carcasses that have been disturbed. The first symptoms of the virus can be mistaken for the flu. Patients then suffer breathing difficulties that may prove fatal if not treated effectively and immediately.

Is breathing rat urine harmful?

Hantavirus pulmonary syndrome (HPS) is a serious respiratory disease transmitted by infected rodents through urine, droppings or saliva. Humans can contract the disease when they breathe in aerosolized virus.

Is the Hantavirus airborne?

The virus is mainly transmitted to people when they breathe in air contaminated with the virus. When fresh rodent urine, droppings, or nesting materials are stirred up, tiny droplets containing the virus get into the air. This process is known as “airborne transmission“.

Does Hantavirus live in old droppings?

In fact, the virus does not seem to make them ill at all; it simply lives in their bodies. However, the virus is shed continuously from them: into the droppings and urine they leave around the room, and into their saliva, which dries on anything they have chewed, such as nesting material.

Do rats carry hantavirus?

Only some kinds of mice and rats can give people hantaviruses that can cause HPS. In North America, they are the deer mouse, the white-footed mouse, the rice rat, and the cotton rat. However, not every deer mouse, white-footed mouse, rice rat, or cotton rat carries a hantavirus.

What diseases can you get from rodents?

Hantavirus – “Hantavirus is a potentially life-threatening disease transmitted to humans by rodents—primarily, the white-footed deer mouse. Salmonellosis – Salmonellosis is a type of food poisoning spread by rodent feces, especially through the consumption of contaminated food.

What diseases can you get from mouse droppings?

Rodents, such as mice and rats, can leave droppings that can spread bacteria, contaminate food, and cause allergic reactions. Droppings can also spread diseases and viruses such as the following: Hantavirus – “Hantavirus is a potentially life-threatening disease transmitted to humans by rodents—primarily, the white-footed deer mouse.

What are the most common digestive disorders in rats?

The most common digestive disorders of rats are caused by intestinal parasites or bacterial infection. These conditions are described in this section. Pinworms are common intestinal parasites in rats. They only require one host (in this case, rats) and are transmitted through infected feces.

What are the dangers of rodent droppings?

Rodents, such as mice and rats, can leave droppings that can spread bacteria, contaminate food, and cause allergic reactions.