The Metropolitan Washington Airports Authority said late Wednesday that the Centers for Disease Control has assured them that the man was not ill during his flight on Sept. 20 so there is no chance of transmission.
“The ill person did not exhibit symptoms of Ebola during the flights from West Africa and the CDC does not recommend that people on the same commercial airline flights undergo monitoring, as Ebola is contagious only if the person is experiencing active symptoms,” MWAA said in a statement.
United Airlines officials said they believe that the man traveled on the following flights: Brussels to Washington Dulles on Flight 951, and Washington Dulles to Dallas-Fort Worth on Flight 822.
The CDC said in a statement there is “zero risk of transmission on any flight on which the patient flew because he was not symptomatic until several days after his trip and could not have been contagious on the dates he traveled.”
The CDC added that while they feel it is unnecessary “for it or the airline to contact others who were on the patient’s flights, United is providing information about the flights United believes the patient took, based on information provided by the CDC. We are ensuring our employees have this information and suggest that any customers who have concerns contact the experts at the CDC for further information.”
A Texas television station says the man spent three hours on the ground at Dulles. The planes in which he traveled have since flown to 27 cities, reports ABC 13 Houston.
The man, identified by the Associated Press as Thomas Eric Duncan, remains hospitalized in Dallas. Family members, including children, he came in contact with since showing symptoms late last week, are under a 21-day quarantine.
Ebola has killed more than 2,900 people since the outbreak began in March, according to the CDC..
Meanwhile, Reston has been mentioned in many reports this week as a place where Ebola was previously found in the United States. That infection, which began in monkeys imported from the Philippines to a Reston lab in 1989, was transmitted through the air.
While hundreds of monkeys either contracted or were exposed to what is now called Ebola Reston, one of five strains of the deadly disease, Ebola Reston did not infect humans.
Read more about Ebola Reston in this Reston Now article.