In the 1940s, scientists discovered bacteria conjugation, the process of DNA transfer or bacterial sex. The discovery proved that bacteria and viruses contain DNA and led to a Nobel prize. Interested individuals learn about the...

When kids enter school, they often bring home new illnesses. Decode their symptoms, and help them to take care of themselves, with a fact sheet about the common cold. It delineates the symptoms one would experience as well as the signs...

Don't sacrifice physical activity every time cold winter weather arrives. From walking or circuit training to warm, healthy recipes and safety reminders, this resource will help encourage learners to prioritize their fitness and stay...

Understand how pathogens cause infections in humans.

An interactive, self-guided lesson on the function of the human immune system and how medical intervention prevents disease. This lesson has many descriptive animations as well as graphs and diagrams to help with understanding. There is...

This lesson focuses on communicable diseases that are caused by bacteria including Gonorrhea and Salmonella. Links to a video and a test are provided.

For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases are caused by specific bacteria. But how did we get to this new idea...

This video by Yoni Goodman and the Global Health Media Project tells the story of cholera in one village. [4:29]

Practice questions related to helicobacter pylori and the gastrointestinal system.