Outbreak fears at Washington Dulles airport as MORE travelers test positive for world’s most infectious disease

Fears over a measles outbreak at Washington Dulles International Airport are emerging after two more passengers tested positive for the disease.

The pair, who had returned to the US from abroad, arrived at the airport and went to the baggage claim at Concourse A on March 5 between 8am and 12.30pm.

Later that same day, a separate measles-infected passenger arrived at the airport’s main terminal and went to the baggage claim between 4 and 9pm.

Officials insisted to DailyMail.com that the two events were not linked, but urged everyone who was in the airport on March 5 to monitor themselves for symptoms.

The two infected patients also visited Ronald Reagan Washington National Airport on March 14 between 12pm and 2.30pm, but this was to go to the shuttle bus terminal and they did not board a flight.

Measles is the most infectious disease known to man, and infected droplets can hang in the air for at least two hours after a patient passes — potentially infecting others.

It comes amid a major outbreak of the disease in West Texas, where nearly 300 people have tested positive — more than the whole of the US last year.

Last month, an unvaccinated six-year-old school-girl became the first American to die from measles in a decade.

Washington Dulles is the third major airport to be hit by a measles scare this year, after an infected passenger also traveled through New York’s JFK last month and, in a separate case, an infected passenger visited Los Angeles International Airport.

Officials in Maryland said the two new patients — who live in the state’s Prince George county — had visited their local Kaiser Permanente hospital four times, the Washington Metro and a Toyota car dealership before measles was diagnosed.

It was not clear whether the patients had been vaccinated, what airline they flew on or what country they returned to the US from.

Officials said that they were contacting people on their flight who may have been exposed to the disease.

Those who fear they may have come into contact with the passengers are advised to monitor themselves for symptoms for 21 days from the date of exposure.

If they develop symptoms, which include a fever or blotchy red rash, they are advised to isolate immediately and contact local health services.

The vaccine is the best way to prevent the infection, and is more than 97 percent effective against the disease.

About 60,000 passengers travel through Dulles airport every day, which flies to more than 139 destinations around the world.

It is the primary airport for the DC region. 

After leaving the airport, the latest two patients went straight to Kaiser Permanente Largo Medical Center and were there from 7.30pm to 4.30am the next day before being discharged.

They visited the cente again from 4.15am to 10am on March 13, before visiting Ronald Reagan Washington National Airport the following day.

On March 14, they visited the shuttle bus terminal at Ronald Reagan Washington National Airport between 12 and 2.30pm, and then took the Metro’s Yellow Line heading from the airport to L’Enfant Plaza Station where they transferred to the Silver Line train to travel to Downtown Largo Station.

They went to Kaiser Permanente again on March 15 between 7.45am and 3.15pm, when they were again discharged.

And on March 17, went to Passport Toyota car dealer in Suitland between 10am and 1.30pm before returning to the hospital at 2.30pm.

Officials are urging anyone who was in these locations around the same time to monitor themselves for symptoms of the disease.

As well as causing a characteristic blotchy red rash that spreads across the body, measles can also weaken the immune system triggering other complications like pneumonia which can be fatal.

Data shows that about three out of every 1,000 children infected die from the disease.

Before the vaccine came in, about 400 to 500 children died from measles in the US every year while 48,000 were hospitalized and 1,000 suffered from encephalitis, or swelling of the brain.

Doctors say the vaccine is the best way to prevent the infection, which is about 97 percent effective against the disease.