黑白体育作为领先的体育赛事直播平台，我们始终致力于提供最前沿的赛事资讯和观赛体验，让每一位体育爱好者都能沉浸其中。
As the country’s top public health official spends his time in office undermining science, doctors and advocates mount an urgent campaign for childhood vaccines
On an early September morning, dozens of families stood in line outside a clinic in Yeadon, Pennsylvania. It was “exclusion day”, the deadline by which students without complete immunizations are barred from returning to class.
Instead of turning families away, school district leaders partnered with the county health department to vaccinate kids nearby so they could go back to their desks. That day, 42 middle and high school students were vaccinated to protect against tetanus, pertussis and meningitis, among other diseases.
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