February 7, 2015

THERE IS NO RIGHT TO NEEDLESSLY ENDANGER OTHERS:

How Anti-Vaccination Trends Vex Herd Immunity (JO CRAVEN MCGINTY, Feb. 6, 2015, WSJ)

When large segments of a population are immunized against measles, it reduces the risk of exposure for everyone in the community, including families who refuse vaccines. The concept is called herd immunity.

But when too many healthy people forgo vaccinations--as they have in pockets of California and other states--the whole herd becomes more vulnerable, not just those who skipped shots. Without vaccines, measles and other infectious diseases can proliferate, and people who were previously protected may become imperiled.

The issue with measles is that now so many people avoid vaccines for religious reasons or other personal beliefs the magic number for protecting the herd--a vaccination rate of 92 to 94% for measles--has been compromised in parts of the country. It's a serious concern among health experts.

Posted by at February 7, 2015 6:25 AM
  

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