Science News Roundup: 7/17/12

Another week, another science news roundup. We’ve got some awesome space news, baby snow leopards, HPV vaccine news, dinosaur sex, and more! Read More Science News Roundup: 7/17/12

About Herd Immunity

Herd immunity, or community immunity, refers to the protection that a high percentage of vaccinated individuals provide to individuals who have never been vaccinated or in whom vaccinations have failed against the spread of infectious diseases. The protection is provided because the disease cannot find new hosts to spread to after a certain percentage of the population is vaccinated. Read More About Herd Immunity