Difference between revisions of "Herd immunity"
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| − | [[Community immunity]] is having a large percentage of the population [[vaccine|vaccinated]] in order to prevent the spread of certain infectious diseases. Even individuals not vaccinated (such as newborns and those with chronic illnesses) are offered some protection because the disease has little opportunity to spread within the community. This is also known as herd immunity.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#c</ref> | + | [[Community immunity]] is having a large percentage of the population [[vaccine|vaccinated]] in order to prevent the spread of certain infectious diseases. Even individuals not vaccinated (such as newborns and those with chronic illnesses) are offered some protection because the disease has little opportunity to spread within the community. This is also known as herd immunity.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#c</ref> The thresholds for herd immunity to protect against various diseases range from 85% to 94% vaccination rates.<ref>http://www.bt.cdc.gov/agent/smallpox/training/overview/pdf/eradicationhistory.pdf</ref> |
==References== | ==References== | ||
Revision as of 21:51, October 4, 2011
Community immunity is having a large percentage of the population vaccinated in order to prevent the spread of certain infectious diseases. Even individuals not vaccinated (such as newborns and those with chronic illnesses) are offered some protection because the disease has little opportunity to spread within the community. This is also known as herd immunity.[1] The thresholds for herd immunity to protect against various diseases range from 85% to 94% vaccination rates.[2]