19don MSN
The US has seen nearly 28,000 whooping cough cases this year. Here’s what you need to know
For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels.
WASHINGTON — For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels. Often called the "100-day cough," whooping cough ...
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