That upward creep seems small
That upward creep seems small and insignificant, but looking at the overall rate of exemption obscures the real danger areas. The problem is that those who have "philosophical" objections to vaccination, generally based on fear and misinformation, are often clustered in communities of like-minded air max 2014 night factor, significantly raising the risk that a single case will spiral into a larger outbreak.
In dozens of New York City private schools, for example, the vaccination rate is below 70% — worse than in developing nations like Afghanistan and Liberia. In Los Angeles, the "percentage of kindergartens in which at least mens nike free running 5.0 uk of students are not fully vaccinated because of personal beliefs has more than doubled" in seven years, the Los Angeles Times reported. Herd immunity against measles requires a vaccination rate of 92% or higher, so when at least 8% of a population is unvaccinated, the vulnerable are no longer protected. For most people in this country, measles seems like a historical artifact, not a current threat. But not so very long ago, nearly all Americans got measles by the time they turned 15.
The first known description of the disease appeared in the 9th century, but even by the 1950s in the US, approximately 4 million people were infected each year and 48,000 ended up in the hospital with measles-related complications like air max 95. While the most common symptoms are a fever and a rash, the most-feared side effect of measles is encephalitis, a brain swelling that occurred in thousands of children every year and often led to deafness, cognitive delays, and lasting neurological problems.
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