Leslie A. Tengelsen PhD DVM


Ebola or Marburg Virus Infection

What is an Ebola or Marburg virus infection? Ebola and Marburg virus diseases are rare but often deadly diseases that are caused by the Ebola or Marburg virus. A person who is sick with one of these viruses can spread the infection to others. These are known as hemorrhagic viruses, because they can cause severe…

Insect Repellents

You can lower your chance of being bitten by an insect or spiderlike animal (arachnid) by using insect repellents. Mosquitoes, biting flies, and ticks can cause annoying bites and sometimes a serious disease. Mosquito bites can spread infections such as West Nile virus, a virus that causes swelling of the brain (…

Mad Cow Disease

Mad cow disease (bovine spongiform encephalopathy, or BSE) is a degenerative, usually fatal disease that affects the central nervous system of cattle, sheep, and goats. While humans cannot get mad cow disease, in rare cases they may get a human form called variant Creutzfeldt-Jakob disease (vCJD) if they eat nerve…

West Nile Virus Transmission Cycle

Illustration copyright 2005. Adapted from the U.S. Centers for Disease Control and Prevention. Available online: http://www.cdc.gov Mosquitoes become infected with West Nile virus when they bite infected birds. And then they may transmit the virus to humans and animals when they bite to take blood.

Amebiasis

Amebiasis (amebic dysentery) is a parasitic infection of the large intestine and sometimes the liver. More common in developing countries, the parasite is spread by flies, cockroaches, and direct contact with hands, food, or drinking water contaminated with feces from an infected person. Sometimes no symptoms are…