Small increases in vaccine cost can cause large gaps in protection

Friday, July 30, 2010 - 04:56 in Health & Medicine

Public immunisation efforts may be much more sensitive than previously realised to small changes in the perceived costs or risks of vaccination, scientists at Harvard University report this week. In some cases, the spread of vaccine avoidance via social networks can make the difference between a minor, localised outbreak and an epidemic four times as large...

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