Other states followed suit, and by the 1980-1981 school year, all states had vaccination requirements for students entering the classroom, the CDC said....
John Brownstein, an epidemiologist at Boston Children's Hospital and an ABC News contributor." This is why vaccine mandates in schools have been super important," Brownstein said....
All require vaccines that protect against polio, diphtheria, tetanus, whooping cough, measles and rubella, according to the Immunization Action Coalition( IAC)
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ABC新闻-美国新闻
2021-09-17 00:00:00.0