Leslie A. Tengelsen PhD DVM


Parasite

A parasite is an animal or plant that lives in or on another animal or plant (called the host). A parasite gets nourishment from its host without helping the host.

Inhalational Anthrax

Anthrax spores enter the respiratory system when they are inhaled through the nose or mouth. Larger spores may settle in the windpipe (trachea). The immune system reacts by trying to destroy the spores. Some spores may escape and travel to the lymph nodes located in the chest. Smaller spores travel farther down the…

Enterovirus D68 (EV-D68)

What is an enterovirus D68 infection? Enterovirus D68 is an infection in the lungs and breathing passages (respiratory system). It is caused by a virus called enterovirus D68 (EV-D68). This is one of many kinds of enteroviruses. Enterovirus infections usually cause mild, cold-like symptoms. But an enterovirus D68…

Tapeworm

A tapeworm is a parasite that attaches to the walls of the intestine after it enters a person’s digestive tract. A person may become infected with tapeworms after eating raw or undercooked meat or fish that contains the worms. A tapeworm infection may not cause any symptoms. If symptoms are present, they may include…

Avian Influenza (Bird Flu)

Bird flu is an infection caused by a type of avian influenza virus. Although there are many types of bird flu, the types that now concern health workers—because they are very serious and often fatal—are the H5N1 and H7N9 bird flu viruses. Symptoms of bird flu can be the same as common flu symptoms. These can include a…