Source: Vancouver Sun (Canada)
By: Ryan, Denise
There have been two confirmed cases of measles and at least 100 suspected cases in the east Fraser Valley of British Columbia, prompting health officials to call for vaccination among those who do not have immunity. The most recent measles exposure occurred in an undisclosed school in Chilliwack, in a community already known to have low immunization rates, said Dr. Victoria Lee, spokeswoman for the Fraser Health Authority. Public-health staff are contacting affected families to offer immunoglobulin or the vaccine to reduce the chances of infection. Measles is highly contagious, and an overall immunization rate of at least 90 percent is necessary for “herd immunity” to protect the general population.
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