The hidden sources of low vaccination rates at the local level have been a challenge before in the United States. “When you start looking at communities, you really start to reveal very, very low vaccination rates that tend to average when you’re looking across the country or even the entire state,” said Maimuna Majumder, a Boston health informatics researcher. Children’s Hospital. Viruses are not transmitted at the national or state level, he said, but rather between friends, family and neighbors in a community, and they are transmitted to each other as people go about their daily lives.
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