Why Vaccines Work

What do scurvy and measles have in common? They are diseases we can defeat, as long as we take the proper steps to prevent them. This video from It’s OK To Be Smart goes over the basics of the immune system and how vaccines affect them. More of it is about the history of vaccines, and it also discusses how it’s possible we can sometimes forget how important medical breakthroughs are when we become used to better health. Talk to someone who is familiar with smallpox or polio, and the view changes. On another note, can you say “Citrus fruits cure scurvy” three times fast? (via Geeks Are Sexy)