Rat Related Diseases

Hantavirus Pulmonary Syndrome

Hantavirus pulmonary syndrome (also referred to as HPS) is a rare syndrome caused by a group of viruses known as hantaviruses. This group of viruses is commonly carried by rodents and only specific species of rodents are known to carry the virus and transmit it to people. Deer mice, white-footed mice, rice rats, and cotton rats are the documented carriers of the disease in North America. Read More


Leptospira is a corkscrew-shaped bacterium, commonly found in the urine of rats and mice. This bacterium is known to cause an infection known as leptospirosis. This bacterial infection is known to present itself in two stages. An infected person will experience the first phase and then go into an asymptomatic phase. With treatment, most cases will go away after the first phase. If the infection returns for the second phase, it will be considered a severe case and it will have symptoms that are a lot more serious. Read More


Many people own rats as pets. They are very smart and highly trainable. Like any pet, it is possible for them to become ill. One of the illnesses they can contract is salmonellosis. It is an infection caused by the Salmonella bacterium. It is rare for rats to get it, but it is not impossible. It can be dangerous because it is possible for the pet to pass the infection on to its’ owner. Read More

Rat Bite Fever

Rat bite fever is a disease caused by an infection by one of two different bacteria. Streptobacillus moniliformis and spirillum minus are the bacteria and they are regular bacteria found in the respiratory systems (mouth, nose, and lungs) of rodent in North America and Asia, respectively. Rats are carriers of the disease, meaning that they do not get ill from the different bacteria. This is a serious illness, but prompt medical attention can reduce severity. Read More