Leslie A. Tengelsen PhD DVM


Roundworms and Hookworms

Hookworms and roundworms are tiny parasites that can be passed from animal feces to humans. Waste from pet dogs, cats, and raccoons is a common source of human infection. Hookworms can cause redness, pain, and itching when they travel under the skin. Both kinds of worms can hatch in the stomach and cause stomach pain…

Cat-Scratch Disease

Cat-scratch disease (also commonly known as cat-scratch fever) is a bacterial infection that causes swelling and pain in the lymph nodes and loss of appetite. In most cases, it occurs after a scratch, bite, or lick from a cat or kitten. This infection is also called bartonellosis. Symptoms can vary from mild to severe…

Leptospirosis

Leptospirosis is a bacterial infection that is usually spread through water, food, or soil contaminated by the urine of infected animals. Dogs and rats are the most common domestic animals that spread the infection to people. Symptoms of leptospirosis, if they develop, often begin suddenly and may include severe…

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…

Lymphocytic Choriomeningitis

Lymphocytic choriomeningitis is an infection of the brain and spinal cord. For some people, the lymphocytic choriomeningitis virus (LCMV) causes mild flu-like symptoms or no symptoms at all. But the virus is of special concern to people with weak immune systems and to pregnant women. LCMV can infect a baby before birth…