Of the 58 cases reported across the United States in 2o24, about 93 percent are connected “to international travel,” the CDC said Monday. It said that most of the cases are reported in children aged 12 months and older who have not received a measles vaccine.
“To prevent measles infection and reduce the risk of community transmission from importation, all U.S. residents traveling internationally, regardless of destination, should be current on their MMR vaccinations,” the CDC said, referring to the measles-mumps-rubella vaccine that is commonly administered across the world.
“Many countries, including travel destinations such as Austria, the Philippines, Romania, and the United Kingdom, are experiencing measles outbreaks,” the agency also warned.
But due to “currently high population immunity against measles in most U.S. communities, the risk of widescale spread is low,” the health alert said. “However, pockets of low coverage leave some communities at higher risk for outbreaks.”
The agency then advised parents who plan to travel outside the United States to speak with a health care provider to make sure they received the MMR vaccine at least two weeks prior.
It came after multiple outbreaks of the contagious virus were reported in several areas across the United States, including a Chicago shelter holding illegal immigrants earlier this month. Officials have said that 10 cases were connected to the shelter, prompting the CDC to send a team to the area to investigate and try and prevent the spread of the virus.
The head of the Chicago Department of Public Health, Dr. Olusimbo Ige told NBC News last week that the agency is “trying to get it under control by vaccinating as many people as possible” at the shelter, coming as about a dozen cases have been confirmed so far. He added that it takes about three weeks for the vaccine to start working.
A CDC official, meanwhile, described the situation at the illegal immigrant shelter “an outbreak,” adding that “we have a very low bar for calling an outbreak” for measles in the United States.
Earlier this year, health officials in the District of Columbia and Virginia issued notices regarding a “case of measles in a person who traveled through” area airports after returning from “international travel.” Later, someone traveling through the Cincinnati Airport also triggered an advisory from local officials in Ohio and Kentucky, warning about a possible exposure.
In February, a school district in Broward County, Florida, reported several cases of measles. But this week, the district confirmed in a statement that the outbreak is now officially over because no new cases have been reported since it started.
Previous Alerts
In late January, the CDC sent out an alert to health care providers, saying doctors and nurses should be on the lookout for suspected measles cases amid several outbreaks this year.The agency said health care providers should “immediately” report suspected measles cases to state and local health agencies, which are then reported to the CDC.
Symptoms
Authorities say measles generally shows up in two stages. In the first, most people develop a fever higher than 101 degrees F, runny nose, watery red eyes, or cough. These symptoms generally start seven to 14 days after being exposed.Three to five days after the first symptoms begin, the telltale measles rash starts to appear on the patient’s face near the hairline area before it spreads to the rest of the body, spreading downward.
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