
Diseases Caused By Rats To Humans
Diseases Caused By Rats To Humans
Did you know that rats can cause diseases without direct contact with or seeing them?
We all know about getting diseases from rats by being bitten, scratched or walking through floods where there is rat urine (especially when you have an open wound). But, inhaling particles contaminated by infected rodents or getting passed to you or family members from your pets getting in contact with rats can get you seriously ill!

You might worry about the strange scratching sounds at night, holes in your food bags, or even seeing rat poop around. But what many people fear most is how rats spread sickness—rat diseases transmitted to humans are a real problem.
That means the chance of catching a disease from their bite, scratch, urine, or poop or even mere inhalation of contaminated particles.
This will explain how rats cause health issues for people. You’ll learn about rat poop disease symptoms, symptoms of bite of rat, symptoms of rat urine—and steps you can take to stay safe and healthy.
Key Takeaways
- Rats are capable of carrying and transmitting numerous diseases to humans, such as Hantavirus, leptospirosis, rat-bite fever, plague, salmonellosis, and murine typhus.
- Humans become sick after coming into contact with rat urine, feces, or saliva; after a bite or scratch; by consuming contaminated food; or through inhaling dust in rat habitats.
- Symptoms of illness are fever, headache, chills, muscle aches, vomiting, swelling, rashes (rat-bite fever), yellow skin (Weil’s Disease), and difficulty breathing (hantavirus).
- Periodic pest control and preventing rats by sealing holes in your home and keeping it clean lowers the risk of these diseases. Quick medical help saves lives if you think you got infected.
Readers are encouraged to consider their local environment and assess if current preventative measures are effective. Urban reports indicate that prompt measures may reduce the risk of rat-related illnesses.
Transmission Methods of Diseases from Rats to Humans
- Bites and scratches spread disease fast. Pathogens move through saliva in rat bites or get into the body by cuts from claws. Watch for rat scratch symptoms, like redness or swelling—these may show infection.
- Contact with urine, feces, or saliva lets germs slip inside unnoticed.
- Objects touched by rats can carry sickness as well.
- Breathing dust made dirty by droppings sends tiny threats into the lungs. Sweeping floors can stir up danger sometimes.
- Eating food or drinking water that rats have spoiled passes diseases right to people’s stomachs without warning.
- Touching a sick rat is risky since hands pick up harmful bugs quickly from fur and skin.
- Pets in contact with rats can pass on the parasites to humans.

Common Diseases in the Philippines Caused by Rat Exposure
Leptospirosis spreads fast in the Philippines, especially during floods. Walking through floods may seem harmless, but this is actually the common cause of getting leptospirosis, and it IS life-threatening.
Leptospirosis can lead to kidney failure or meningitis if not treated promptly. In a study at Mount Makiling, 180 wild rats were caught in different areas; almost all had parasites that cause infections too—showing how easy these diseases spread nearby.
Studies in Metro Manila and Laguna found infected rodents near homes. Hantavirus Pulmonary Syndrome (HPS) induces fever, cough, and breathlessness as fluid accumulates in the lungs.
The disease is due to inhalation of hantaviruses from rat urine or feces.
Salmonellosis may begin after consuming food handled by mice or their feces. Rat-Bite Fever enters through bites or scratches from rats—be cautious of rashes and aching joints following rat exposure.
Certain rats have Yersinia pestis, which can cause the plague when fleas bite humans.
Hantavirus Pulmonary Syndrome (HPS)
Hantavirus Pulmonary Syndrome (HPS), the same disease suspected of Gene Hackman’s wife, is associated with rat-carried infectious agents. Individuals can become infected with hantavirus through the inhalation of dust containing rodent urine, droppings, or saliva of infected rodents such as the Norway rat and the common house mouse.
Urbanization may raise risks as more people live close to rats that carry disease pathogens. In the Philippines, no human cases have been reported yet—some infections might have gone unreported or misdiagnosed.
HPS is a severe respiratory disease. Initial signs resemble symptoms of the flu: fever, body aches, headaches, and tiredness. Later on, more critical symptoms develop such as cough and inability to breathe normally as fluid builds up in the lungs—leading to heart failure or low blood pressure.
Physicians have to respond immediately; patients may require intubation or intravenous treatment if they become very ill. Experts call for better research and tracking of HPS transmission in the country because rodent populations keep growing near homes.
Leptospirosis
Following Hantavirus Pulmonary Syndrome (HPS), the second most dangerous disease carried by rats is leptospirosis. Humans acquire leptospirosis through contact with water, soil, or contaminated food with rat urine.

92% of Philippine rat blood samples tested positive for anti-Leptospira antibodies in a study published in *The American Journal of Tropical Medicine and Hygiene* in 2010.Also, 46 rats—about 43%—were culture-positive for Leptospira bacteria.
The most common types found were Manilae, Hebdomadis, and Losbanos serovars. Genetic tests showed the presence of L. interrogans (Manilae, Losbanos, Grippotyphosa) and L. borgpetersenii (Javanica).
This infectious disease can lead to high fever, muscle pain, yellow skin or eyes (jaundice), vomiting and kidney problems such as Weil’s disease in humans exposed to contaminated areas or foods.
Proper handling of waste helps reduce risks from this rat poop disease that threatens those living near reservoirs or places where sanitation is poor.
Rat-Bite Fever
Rat-Bite Fever spreads to humans from rats through bites, scratches, or contact with rat saliva. In the Philippines, a high number of captured Norway rats carry zoonotic diseases. Streptobacillus moniliformis is the primary bacteria responsible for this infection in humans.
Symptoms usually appear between 3 and 10 days of exposure and may involve fever, chills, arthralgia, rash, vomiting and headache. Individuals may also experience swelling around the site of bite or scratch.
Urbanization has made it easier for these diseases to spread. Large cities allow rat populations—and their parasites—to grow quickly. Experts found many city rats infected with helminth parasites too.
The risk increases for those living near large rodent populations or handling pocket pets like guinea pigs or gerbils. Leptospira bacteria also live in many rats but do not make them sick; they cause severe illness in people through urine contact—leading to leptospirosis alongside Rat-Bite Fever as serious health threats related to rat exposure across homes throughout urban areas.
Salmonellosis is another danger linked with contaminated food due to rodents; let’s discuss how salmonella affects human health next…
Salmonellosis
Salmonellosis spreads through rat poop and urine, often found in food or water. Individuals can become ill after handling objects the rats have infected or consuming contaminated food. The bacteria induce symptoms such as diarrhea, abdominal cramps, nausea and fever.
Young children, elderly people and individuals with compromised immune systems are at greater risk for complications.
Symptoms of salmonella infection appear quickly—typically within 6 to 72 hours of exposure. Many people recover without medicine but severe cases need quick care to avoid dehydration and other complications.

Clean kitchens, proper waste management and sealing entry points help stop this rat disease transmitted to humans.
Lymphocytic Choriomeningitis
Lymphocytic choriomeningitis is a viral disease that people can contract from rats. The virus, or lymphocytic choriomeningitis virus (LCMV), resides within rodents and is transmitted via their urine, feces, or saliva.
People breathe in dust with dried rat droppings or touch things with rat urine on them. Urban areas face higher risk because poor sanitation lets rodent-borne diseases spread fast.
Symptoms of LCMV can look like mild flu at first—fever, muscle aches, headache. In some people, it gets worse and causes meningitis or brain swelling (meningoencephalitis). Having a weakened immune system makes things even more serious.
Rats are the main source for LCMV but other rodents may carry it too. Early signs matter—knowing symptoms helps catch these infections fast… Next up: how to spot symptoms of other rat-related diseases.
Tularemia
Rats are a major carrier of Lymphocytic Choriomeningitis but are also associated with other severe infections, such as tularemia. Tularemia is caused by Francisella tularensis bacteria.
The disease is transferred to humans through direct contact with the infected rats or when they touch what they have contaminated. Urban areas give rats good places to live and increase the risk of humans getting rat diseases transmitted to humans.
Some research indicates a high incidence of helminth parasite infection among the native rat population in the Philippines. These parasites facilitate the spread of zoonotic diseases such as tularemia and even mix with one another within a single rat, which complicates transmission.
Symptoms and signs typically resemble the flu—fever, chills, body pain—but this disease can escalate quickly if not treated immediately. Rats act as reservoirs for Francisella tularensis and help pass tularenis on not just through bites or scratches but sometimes even with ticks that feed on them.
Handling wild rodents without protection raises your chances of catching these rat-borne illnesses too.
Typhoid Fever and Typhus
Typhoid fever and typhus are both associated with rat infestations, which flourish in dense urban environments. In the Philippines, children become ill more frequently as a result of hand-to-mouth behaviors and soiled soil contaminated by rats or their feces.

The incidence of these diseases increases as cities grow and land use patterns shift, bringing rats closer to humans.
Larger rodents carry more bacteria that trigger typhoid fever and typhus. Places with several rodent-borne illnesses see a higher risk for infection.
Public health concerns increase as outbreaks occur where large numbers of rats reside close to homes or schools.
Be aware of typical symptoms—fever, body pain, headache, abdominal pain, rashes—which may resemble influenza initially but can rapidly deteriorate without treatment.
Hemorrhagic Fever with Renal Syndrome
Hemorrhagic fever with renal syndrome (HFRS) is transmitted from rats such as Rattus tanezumi and Rattus norvegicus that inhabit densely populated cities. Such rodents harbor hantavirus infection, including the Seoul virus, that is transmitted to humans by contact with rat feces, urine or saliva.
HFRS results in symptoms like sudden onset of high fever, muscle pain, bleeding disorders and kidney complications like acute kidney failure. Individuals can experience breathing problems or even require dialysis for extensive kidney damage.
Urbanization has led to more rats living near humans. Research indicates many of these rodents also host helminth parasites—putting things at risk for communities.
In some communities where leptospirosis is prevalent, health officials are concerned that rodent-borne diseases such as HFRS can spread more rapidly during flooding or inadequate waste management.
Kids and people with compromised immune systems are at higher risk if they get exposed to rat feces or are bitten by animals.

Identifying Symptoms of Rat-Related Diseases
Rat-related diseases show many symptoms. Fever, chills, aches, and headaches are typical in rat bite fever or plague infections.
Difficulty breathing and coughing may indicate hantavirus pulmonary syndrome or Nippostrongylus brasiliensis lung damage.
Diarrhea, abdominal pain, nausea, and vomiting may accompany salmonellosis or strongyloides ratti infection—rat feces disease symptoms sometimes induce these symptoms.
Other individuals develop dizziness, loss of appetite, weight loss, or stomach upset when infected by rat-helminth parasites.
Echinostomiasis brings gastrointestinal troubles and liver problems; leptospirosis often causes yellow eyes and dark urine due to kidney trouble.
Red bumps on skin may be signs of rat scratch symptoms or allergic reactions to mites that live on rats—these ectoparasites can also spread other viruses such as typhus or Colorado tick fever.
Inflamed tissues in the brain may result from lymphocytic choriomeningitis virus after exposure to contaminated rodent urine or droppings.
Treatment Approaches for Rat-Borne Diseases
Prompt treatment can be lifesaving in instances of infection caused by rats. Physicians sometimes treat diseases such as leptospirosis, typhoid fever, and tularemia with antibiotics. In bacterial conditions such as salmonellosis or the plague, treatment is best administered early.
If you show any symptoms of bite of rat—such as swelling or fever—or have signs after touching rat urine, or after walking through floods, seek medical help at once.
Medical teams may give fluids for dehydration caused by diarrhoea from consumption of contaminated food or water. In severe respiratory symptoms linked with hantavirus pulmonary syndrome (HPS), hospital care might be needed for oxygen support.
Vaccines do not cover all these conditions yet. Lab tests find out which disease is present before starting medicine. Specific therapies target organ damage affecting kidneys, liver (hepatitis risk), and blood vessels during hemorrhagic fever with renal syndrome.
Block rats from getting into your home—this helps stop transmission of diseases to people… Next up are simple ways to keep rats out and keep your family safe at home!
Prevention Methods to Avoid Rat Infestation in Homes

Small adjustments at home—such as inspecting for cracks, dealing with trash with covered cans, and installing mouse traps—will repel rats, so read on to discover how these actions keep your family safe.
Sealing Entry Points
Cities like Manila face higher risks of rodent infestations due to urbanization. Sealing entry points blocks rats from coming inside homes and buildings. Rats may carry leptospirosis, and other rat-borne diseases that are transmitted via rat urine or rat bites.
Inspect for holes in walls, floors, doors, and windows—particularly those that are only half an inch large. Plug up these holes with wire mesh or steel wool.
Keep checking seals often because even small cracks let rats inside again. Well-sealed houses help control the rodent population in crowded places—this keeps people safe from vascular infections linked to rat-borne vectors.
Regular sealing protects family health by lowering contact with dangerous germs from rats or their waste.
Proper Waste Management
After sealing entry points, garbage control steps in as your next defense. Uncollected trash and uncovered bins create easy food sources for rats. Good waste management removes what draws them near your home.
Have general cleaning every few months for a deep clean, especially knowing that even dust particles from rat poop can lead to serious and life-threatening diseases.
Find house cleaning services from our directory near your area.
Garbage left out brings health risks like leptospirosis, because rats spread the bacteria Leptospira through their urine. Clean areas limit this risk and protect children from soil-hand-mouth diseases linked to helminth parasites.
Regular use of covered bins and swift removal of refuse cuts down exposure to salmonella, the plague, typhoid fever, and other diseases passed by rodents.
Busy places need strict routines—collection schedules or recycling centers help keep things clean and safe for everyone living nearby.
Implementation of Traps and Repellents

Laying rat traps and applying repellents are fundamental measures to secure homes against rodent attacks. Traps such as snap traps or glue boards trap rats promptly, whereas repellents in the form of natural oils or chemicals repel them.
Pest control specialists claim that these devices have a very important role in preventing the transmission of diseases such as leptospirosis, salmonellosis, and even rat rabies manifestations in humans. Studies indicate homes with frequent trap usage had 50 percent less indication of rats during rainy season 2023.
It is highly recommended to have pest control specialists at least every three months, knowing how fast rodents breed.
Check pest control specialists in your area to help prevent these life threatening dieases.
Proper placement matters—a trap near food scraps or dark corners works better. Use at least three traps per room for best results. Keep children and rabbits away from poison baits because these can harm pets too.
Sealing cracks stops new mice from entering after you set up your first round of traps.
Spotting early symptoms of infection is just as important for families living where rats visit often… This leads right into identifying warning signs linked to rat-related illnesses next.
Conclusion
Diseases from rats, like leptospirosis and salmonellosis, can become serious and even life-threatening – so prevention of rat infestation and acting fast when symptoms appear are important steps to follow. The best steps? Seal holes, throw away trash the right way, and use traps or safe repellents at home.
These tips are simple to follow and help keep your family safe from sickness. Stopping rats keeps communities healthy and protects crops too—a big win for both homes and farms in the Philippines.
FAQs
1. What illnesses can rats transmit to humans?
Rats can transmit diseases such as leptospirosis, salmonella infection, hantavirus disease, and rat-bite fever. Each of them begins differently but all are from contact with rats or their feces.
2. How do individuals become infected with these illnesses from rats?
Individuals become ill by coming into contact with rat urine or feces, inhaling dust with germs from nests, consuming food handled by rats, or being bitten or scratched.
3. Do you notice symptoms of illness immediately after being in contact with rats?
No, symptoms usually appear days afterward. Symptoms can be fever, headache, muscle ache—sometimes stomachache or vomiting as well—depending on the disease.
4. How can I reduce my risk of getting these illnesses at home?
Maintain your area tidy and keep food stored safely. Seal holes through which rodents may get in. Clean up rodent mess with gloves and wash hands thoroughly after touching anything that may be contaminated with mice or their droppings.
Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Please consult a health professional for personalized guidance.
Sources: Centers for Disease Control and Prevention (CDC), World Health Organization (WHO).