CDC Recommends Additional Measles Vaccination for Travelers Amid Outbreaks

The Centers for Disease Control and Prevention (CDC) has issued new recommendations for U.S. travelers heading to regions experiencing active measles outbreaks. This advisory comes as the number of reported measles cases has surged to over 600 across at least 21 states this year, highlighting the highly contagious nature of the virus.

In a communication dated April 8, the CDC urged health departments to advise individuals traveling to areas with ongoing outbreaks to adhere to local vaccination guidelines. So far, only Texas and Kansas have responded to the outbreak by updating their vaccination guidance.

Travelers to affected counties in these states are encouraged to verify their vaccination status. The CDC stated that individuals residing or traveling in regions with widespread measles transmission should consider their vaccination history. This might involve receiving an additional dose of the measles, mumps, and rubella (MMR) vaccine if they have had only one previous dose or getting vaccinated if they have not received any doses.

The CDC's updated vaccination recommendations for specific groups include:

• Infants aged 6 to 11 months: Should receive an early dose of the vaccine, followed by two additional doses at 12 to 15 months and again at 4 to 6 years old.
• Children over 12 months: Those who have only received one dose should get an early second dose, provided it has been at least 28 days since the first.
• Individuals born between 1957 and 1968: May require a current version of the MMR vaccine, with Texas recommending two doses in this case.

While the CDC has historically recommended vaccination for international travelers, this new guidance marks a shift towards prioritizing domestic travelers in light of the ongoing outbreaks across the United States. Notable states experiencing outbreaks include New Jersey, Georgia, Ohio, Indiana, and Colorado. Tragically, there have been fatalities associated with the virus this year, including the deaths of two children in Texas and one adult in New Mexico.

A CDC spokesperson emphasized that the clinical vaccination guidance during measles outbreaks remains unchanged. Local health departments may issue further recommendations tailored to their communities' needs. The spokesperson also cautioned that any decision to administer early doses to infants should be made judiciously, considering the potential long-term impact on immune responses.

Currently, there are no recommendations for a third dose of the MMR vaccine during measles outbreaks.

For more information regarding measles vaccination, individuals can consult the CDC's official guidelines.