| A | B |
|---|
| Jonas Salk | live-germ polio |
| attenuate | wakened germ |
| Dr Edward Jenner | created term vaccine |
| Louis Pasteur | develped rabies vaccine |
| virus | can reproduce inside a cell |
| host | organism that is invaded by a virus |
| epidemic | rapid spread of a disease |
| immune system | ability to fight infection |
| vaccine | substance given to prevent getting the disease |
| monerans | organisms that have no nucleus |
| bacteria | common form of monerans |
| antibiotics | chemical substances used to kill bacteria |
| cyanobacteria | a large group of organisms that chlorophyll |
| nitrogen | used in cyanobacteria to allow plants to grow |
