US hits most cases of ‘world’s most contagious disease’ in 35 years

Key Points:

• The United States has recorded 2,295 confirmed measles cases in less than seven months of 2026, surpassing the previous annual record of 2,289 cases set in 2025, marking the highest level in 35 years.
• Large outbreaks, particularly in South Carolina and Utah, have driven this surge, with South Carolina's outbreak alone sickening nearly 1,000 people and costing the state $2.1 million.
• Measles was declared eliminated in the US in 2000 due to widespread vaccination, but declining vaccine rates have led to a resurgence, allowing the disease to spread domestically beyond cases linked to international travelers.
• Health experts warn that without increased vaccination coverage, improved outbreak detection, and stronger public health responses, measles cases could rise substantially in 2026, leading to more severe illness, hospitalizations, and deaths.
• Despite the challenges, officials emphasize that the situation is reversible through restoring high MMR vaccine coverage, enhancing surveillance, and rapid response to outbreaks to protect public health and prevent further disruptions.