Measles Cases Are Spreading in the US—Here’s What to Know

Despite its elimination in the US in 2000, measles cases are being reported across the country. As of February 22, 35 cases have been reported this year in Arizona, California, Florida, Georgia, Indiana, Louisiana, Maryland, Minnesota, Missouri, New Jersey, New York City, Ohio, Pennsylvania, Virginia, and Washington, according to the US Centers for Disease Control and Prevention (CDC).

The CDC cautioned in a January alert that between December 1, 2023, and January 23, 2024, the agency was informed of 23 confirmed cases, most among children and adolescents who were eligible for vaccination but had not received the vaccine. Seven of those cases were imported by international travelers—travel-related cases present a danger to people who are unvaccinated and undervaccinated.

Tina Tan, MD, president-elect of the Infectious Diseases Society of America, said it’s important to understand how quickly measles can spread. “We live in a very mobile world where I don’t think people realize that an infectious disease can travel from one side of the world to the other in less than 24 hours,” she said in an interview with JAMA.

According to the CDC, clinicians should especially watch for measles symptoms among patients who traveled abroad to countries with ongoing outbreaks. As of early February, Yemen, Azerbaijan, Kazakhstan, India, Ethiopia, and Russia had the world’s highest case numbers.

Measles Cases Are Spreading in the US—Here’s What to Know tips 10

Vaccination is Key: Ensure you and your family are up-to-date on measles vaccinations. Vaccination remains the most effective way to prevent measles infection.


Recognize Symptoms: Be aware of common measles symptoms such as high fever, cough, runny nose, and rash. If you suspect measles, seek medical attention promptly.

Isolate Infected Individuals: If someone in your household is diagnosed with measles, isolate them from others to prevent further spread. Follow healthcare provider recommendations for quarantine.


Practice Good Hygiene: Wash hands frequently with soap and water, especially after coughing or sneezing. Avoid touching your face, particularly your eyes, nose, and mouth.


Cover Your Mouth: Encourage the use of tissues or elbows when coughing or sneezing to prevent respiratory droplets from spreading.


Stay Informed: Stay updated on measles outbreaks in your area through reliable sources like the CDC or local health departments. Knowledge empowers you to take appropriate precautions.

Travel Precautions: If traveling internationally or to areas experiencing measles outbreaks, check vaccination recommendations and consider postponing travel if you're not adequately vaccinated.


Educate Others: Spread accurate information about measles prevention and vaccination to friends, family, and community members. Combat misinformation with facts.


Boost Immunity: Maintain a healthy lifestyle with a balanced diet, regular exercise, and adequate sleep. A strong immune system can help fight off infections like measles.

Stay Calm, Act Responsibly: While measles outbreaks can be concerning, panicking doesn't help. Stay calm, follow public health guidelines, and take proactive measures to protect yourself and your community.