To an untrained eye, it can be difficult to correctly identify the specific type of pest infestation in your home. Luckily, our experts at INC Pest Control have put together a comprehensive guide of common household pests as well as the diseases and dangers they may bring.

IMPORTANT: We’d be more than happy to drop by and have a look to help you identify what pests you’re dealing with. Have a look at our branches in Cincinnati, Corpus Christi and Los Angeles for more information on how we can help you in those locations.


Mosquitoes are the most common type of pest around the globe. There are different species of mosquitoes ( Anopheles, Aedes, Culex) and they are all huge contributors in the spreading of diseases. The specific disease will depend on the species and habitat that they are located in. Here are some of the diseases mosquitoes could be carrying:

Chikungunya Virus

Chikungunya virus is most often associated with causing fevers and joint pain. In 2013, the Chikungunya virus was found for the first time in America. This disease is transmitted to humans through the bide of an Aedes genus mosquitoes.

Dengue Fever

Mild cases of dengue fever can often be confused for the flu because of the similar symptoms exhibited. Severe cases, however, will result in severe symptoms and cause discomfort and pain. This disease is most commonly transmitted by the bites of Aedes mosquitoes.


Malaria is a common health risk among travellers due to the disease being very widespread in tropical and subtropical regions. The disease is due to the transmission of a parasite through a mosquito bite (Anopheles). This disease causes fever and other flu-like symptoms. If left untreated, the carrier of the disease may develop complications and die as a result.

West Niles Virus

Cases of the West Nile Virus (WNV) have been documented all the states of America. There are no vaccines or medicines that can effectively treat WNV. About 1 in 150 people infected with WNV will develop serious and possibly lethal symptoms. infection caused by a Flavivirus: the West Nile virus. This virus is transmitted by Culex mosquitoes


There are many types of flies, which are capable of transmitting diseases. On top of that, flies can cause a conditions where the development of their larvae happens beneath the skin of the infected. The bites of flies are not always felt. Below are some of the diseases that flies can carry:

Chrysops Flies – Loiasis

Loiasis is commonly known as African Eye Worm to most people. This disease can cause pain in the eye and light sensitivity. It may also cause itching and irritation.

Simuliidae Flies – Onchocerciasis

This disease is commonly known as river blindness because the flies that transmit them often live by rivers and the symptoms can involve blindness. This disease can result in visual impairment and blindness as well as causing skin diseases.

Glossina Flies – African Trypanosomiasis

African Trypanosomiasis is commonly referred to as sleeping sickness. Luckily, this disease has not made its way to the Americas yet. This disease is treatable with medication but can be fatal if left untreated.

Phlebotominae Flies – Leishmaniasis

Leishmaniasis is a disease that affects the internal organs. This can cause large and noticeable swelling of the organs.


Bed Bugs are pests that can live in a variety of locations in the home. Commonly, they are found under beds, under furniture or in the walls of damp houses. They can transmit Chagas Disease (American Trypanosomiasis).

Chagas Disease

Many people often do not know that they are carriers of Chagas Disease. This is because that this disease is transmitted by nocturnal insects who are active during the night time. Chagas Disease can be lethal if left untreated.


Lice and fleas are common pests, especially for those with children or pets. They can transmit Bartonellosis as well borreliosis and several types of rikettsiosis. The latter two are commonly transmitted by ticks as well.

Bartonellosis (Trench Fever)

This disease may result in fever, rashes and bone pain. It is known as Trench Fever because of the amount of people who got it as a result from body lice during World War 1.


Ticks are another common pest, especially for those with pets. Tick bites result from being in contact with grassland. Luckily, ticks do not start feeding until 12 to 24 hours after they have implanted themselves (they will implant themselves in major skin folds such as armpits or groins). The risk of infection is low if they are removed quickly. They are hosts of a lot of diseases:

Lyme Disease

Carriers of Lyme Disease will exhibit flu-like symptoms such as fever and fatigue. They will also experience a characteristic skin rash known as Erythema Migrans. Lyme Disease can spread to the joints, heart and nervous system if the disease is left untreated.

Tick-Borne Meningoencephalitis (TBE)

The symptoms of TBE are often unspecific but resemble flu-like symptoms. The disease goes into remission at approximately 8 days but 20-30% of patients go through a second phase of the disease at this time, with symptoms affecting the central nervous system.

Crimean–Congo Hemorrhagic Fever (CCHF)

CCHF is a deadly illness. Onset of the disease is sudden and carrier display flu-like symptoms and more serious symptoms in severe cases (jaundice, changes in sensory perception, etc). Fatality rates from patients in hospitals have ranged from 9% to as high as 50%.

Tick-Borne Relapsing Fever (TBRF)

TBRF causes recurring episodes of nausea, fever, muscle and joint aches, and other flu-like symptoms.

Q Fever

Carriers of Q Fever will develop flu like symptoms. Q Fever in pregnant women may result in miscarriages. Serious cases of Q Fever (known as Chronic Q Fever) can be lethal.

Tick-Borne Spotted Fevers (TBSF)

TBSF’s consist of a number of diseases caused by the transmission of the Rickettsia bacteria by ticks. These TBSF’s will start wil flu-like symptoms but will eventually lead to life threatening and lethal complications if left untreated.


Rats and mice are the most common rodent pests that infest homes. They often live in hollow spaces inside or underneath the home. These rodents are carriers and transmitters of a large number of deadly diseases. These are some of the diseases commonly transmitted by rats/mice:

Hantavirus Pulmonary Syndrome (HPS)

HPS is transmitted in one of three ways: HPS can be inhaled through the remnants of contaminated rat droppings, through direct contact with rat droppings or as a result from a rat bite. Victims of this disease can experience difficulty breathing and other flu like symptoms. This disease can be lethal if not treated. The CDC reported that since 1993, 406 cases of HPS were reported and, of those cases, 36% were fatal.


Leptospirosis is transmitted through infected water. In households, it is commonly transmitted through infected drinking water. Victims of this disease will display flu-like symptoms and may eventually experience liver or kidney failure if not treated.

Rat-bite Fever

Rat-bite Fever is commonly transmitted through rat bites but can also be contracted through contact with a dead rat of through contaminated water. Carriers will display flu-like symptoms that could be lethal if untreated.


Salmonellosis is an bacterial infection of the Salmonella type. It is transmitted through contaminated food or water. Disease can be lethal if left untreated. Symptoms for the disease are fevers, headaches and stomach cramps.


Rats are the most common carriers of the plague. The disease itself is commonly transmitted through fleas who have fed on rats and then bit humans. This disease is very lethal if left untreated.

Why You Need a Professional

As you can see from our guide above, even the most common and seemingly harmless pests can, in fact, carry deadly diseases. For the safety for yourself and your loved ones, we highly recommend calling in a professional if you suspect a pest infestation. Many people attempt to take care of their pest infestations by themselves, not aware of the consequences. For example, the deadly Hantavirus Pulmonary Syndrome virus can still be present in the home long after the rat problem has been dealt with. At INC Pest Control, our treatments not only address the immediate pest problem, but also ensure a safe and sanitary environment afterwards. Our technicians are all properly trained to remove any strain of disease from your homes so that you and your family can rest easy and peacefully. Give us a call today for any of your pest control needs!