The US is experiencing its worst year for measles in over three decades, with more than 1,300 cases in 40 states as of July 16. Cases were almost as high in 2019, putting the country’s measles elimination status at risk. Six years ago, health officials were able to stop the spread. But amid growing public backlash against vaccines, many of the tactics used then may not work now.
Measles elimination means there has been no continuous transmission in a country for longer than 12 months. That almost happened in the 2019 outbreak, which largely affected Orthodox Jewish populations in New York City and some surrounding counties. In fall 2018, US