1. L5 Preventing and Treating Disease Learning Objectives: 1.Recall that antibiotics (such as penicillin) are used to treat disease. 2.Describe how to prevent the spread of disease. 3.Explain how vaccines prevent illness.

2. Review: How can disease spread? Contact Air Water Food Animals Bodily Fluids

3. How can you prevent the spread of disease?

4. Antiseptic = chemicals that prevent the growth of microbes Antibacterial = destroys or prevents bacterial growth Disinfectant = chemical liquid that kills bacteria

5. How can infectious diseases be treated? Most infections your body’s immune system can deal with on it’s own. But sometimes it needs a little help. Painkillers = make you feel better but do not get rid of pathogens more quickly Antibiotics = medication that kills bacteria Antiviral = medication that is effective against viruses Antifungal = medication that is effective against fungus

6. Read about the discovery of penicillin Answer the questions on the worksheet.