1. Epidemics and Pandemics

2. Micro-Organisms
a microscopic organism, especially a bacterium, virus, or fungus
Also known as a microbe

3. Pathogens
a bacterium, virus, or other microorganism that can cause disease.
Can cause food poisoning, vomiting, diarrhea, and fever

5. Positive Interactions with Microbes
Food Production
Medicine Production
Agricultural Production
Waste Management
Disaster Recovery
Positive Interactions with Microbes

6. The Immune System
First line of defense: White blood cells release chemicals that make it easier for other white blood cells to kill pathogens
Second line of defense: Inflammation causes the affected area to become red and swollen. This helps to keep infection from spreading
Third line of defense: Specialized white blood cells with memory of how to attack this pathogen respond
Antigen, antibody, b cells, t cells

8. Vaccines
a substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease.
Types:
Live, attenuated vaccine: contains living microbes that have been weakened
Inactivated vaccines: contains microbes that have been killed with cheat, chemicals, or radiation. Booster shots are needed periodically
Subunit vaccines: pieces of microbes are used to make the vaccine.
Toxoid vaccines: made using toxins that some types of bacteria produce. Toxins are inactivated and can no longer cause the disease. Booster shots needed.

10. Epidemics and Pandemics
Epidemic: The occurrence of disease in a defined area
Outbreak: Same as an epidemic but refers to a limited geographic area
Pandemic: an epidemic that has spread over several countries or continents
They can have social impact, economic impact, or both