The smell of a dead rat can be harmful to a person's health due to the toxic gases and microscopic compounds of the dead animal that are constantly being released into the indoor air. Since most homes are not consistently ventilated, the gases permeate into the respiratory tract and can potentially cause illness.
Mouse and rat carcasses release a potent odor that can penetrate through air ducts, walls and floors. The stench is so strong that it can cause headaches, nausea, and vomiting. As it turns out, there are two main culprits: decomposition and bacteria.
It's dead. But the decomposing process of the carcass is still a threat to your health, as it activates all sorts of harmful, airborne agents and pathogenic bacteria, which can easily find their way into your lungs and digestive system, or to your skin.
People get HPS when they breath in hantaviruses. This can happen when rodent urine and droppings that contain a hantavirus are stirred up into the air. People can also become infected when they touch mouse or rat urine, droppings, or nesting materials that contain the virus and then touch their eyes, nose, or mouth.
Even after elimination of the source of dead rodent smell, the unsettling scent may linger for up to two weeks. Natural ventilation is necessary to expedite the dissipation of the odor.
Baking Soda
Household kitchen ingredients are great for removing such a foul scent. Mixing baking soda with water and placing the solution into a spray bottle that you can spray the area where the dead rodent was found is your best bet.
Baking Soda: Baking soda is another kitchen ingredient that's great for deodorizing the dead rodent's smell. Create this deodorizer by mixing baking soda inside a spray bottle and regularly spray the area. Bleach: You can also use a bleach solution to deodorize the foul odor from the animal's decomposing animal.
When a rodent dies, its body begins to decompose, which can release harmful bacteria and diseases into the air. If you come into contact with a carcass or its bodily fluids, you may be at risk of contracting a variety of illnesses, including hantavirus, salmonella, and leptospirosis.
A dead mouse should not be left to rot inside your wall, because its corpse could soon attract fleas. With an electronic borescope, you can locate the corpse's whereabouts by drilling a coin-sized hole, a few inches off the ground, into the drywall of the cavity that seems to be emitting the smell.
Early symptoms include fatigue, fever and muscle aches, especially in the large muscle groups—thighs, hips, back, and sometimes shoulders. These symptoms are universal. There may also be headaches, dizziness, chills, and abdominal problems, such as nausea, vomiting, diarrhea, and abdominal pain.
The smells coming from a dead animal are unpleasant, and they can often make you feel like you are going to be sick. However, simply smelling a dead animal is not likely to affect your health.
In most cases, people get HPS after inhaling particles from infected mouse poop. However, hantaviruses can also spread through: Bites from an infected mouse or rat.
Rats are social creatures, which means that if you find one dead rat, there are likely more living rats somewhere nearby.
Try deodorizing with baking soda, charcoal, or pet odor enzymatic sprays. You may also use a combination of deodorizing and sanitizing solutions. Create a 10/90 bleach/water mixture. Vinegar or commercial disinfectants are also good choices.
Answer: The odor will last about 10 days or perhaps a bit longer. There is no certain way that the dead mouse can be found, and there are no chemicals that will take the odor away.
Start by opening all windows and placing bowls of odor-absorbing coffee grinds, baking soda, or charcoal briquets throughout the house. Replace materials in bowls every one to two days until the odor is gone.
What Happens if Mice Die in Your Walls? If you have dead mice in your walls, they typically dry up in 10 days to 2 weeks. At that point, their odor dissipates. Without drilling holes in your walls, it's difficult to extricate the offending bodies and remove the source of the smell.
Coffee grounds are pleasant, powerfully aromatic and absorb odor. Other options that work on that dead mouse smell are charcoal deodorizer bags, Odor Remover Bags, pet odor enzymatic sprays and, if you're willing to spend some money, air ionizer machines.
Dead rats can start to smell within 24 hours and the smell can last for several weeks. To minimize the smell, the body should be removed and disposed of as soon as possible. The smell of a dead rat can last for several weeks depending on the temperature, humidity, and airflow in the area.
In fact, rats and mice are known to spread more than 35 diseases. These diseases can be spread to humans directly through handling of live or dead rodents, contact with rodent feces, urine, or saliva, as well as rodent bites.
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.
It may take days or weeks for the carcass to dry out and the odor to naturally and completely disappear. Humidity can affect the process and make the nauseating odor even more intense. So, if a rat dies near steam pipes or other moist areas in your home or car, it may be "ripe" for a long time.
Dead animal smell lasts from a few days to a few months, or as long as it takes for the animal to decompose fully. The flesh-decomposing microbes that do the work of breaking down the carcass produce the awful smell. Once their job is done, the smell will subside.
The most likely clue, especially in summer, will come in the form of flies. You will see an influx of flies, and you might even be able to track them to the source if the animal died in your walls. The second sign, depending on the size of the animal, would be a wet spot in the wall or on the ceiling.