The most important thing to know when knowing the differences between bacteria and viruses is that antibiotic drugs usually kill bacteria but are not affective against viruses. Bacteria are single- celled microorganisms that thrive in many different types of environments. Some live in hot environments and others can live in cold environments. Most bacteria can cause no harm to people but here are some exceptions. Viruses are much smaller than bacteria and require a living host to survive and multiply. When a virus enters the body, it invades some cells and takes over the cell machinery, redirecting It to produce the virus. HIV stands for human immunodeficiency virus. HIV is a virus that spreads through the entire
You've reached the end of your free preview.
Want to read both pages?
- Summer '19