Overview

• All eligible individuals at a Chicago migrant shelter have been vaccinated against measles following an outbreak.
• The vaccination effort was described as an 'unprecedented operation' involving long shifts and mass vaccination, screening, and education.
• Seven migrants at the shelter, including four children and three adults, have tested positive for measles.
• The shelter, designed to hold 1,000 people, currently houses 1,900, complicating efforts to control the outbreak.
• The CDC has reported 45 measles cases from 17 jurisdictions in the US this year, a significant increase from 2023.