Update, 8:45 p.m., Oct. 13, 2014: Beth Israel Deaconess Medical Center has determined the man from the Braintree incident does not have Ebola.

Sometime Tuesday afternoon doctors at Boston’s Beth Israel Deaconess Medical Center are expected to issue a definitive diagnosis on the condition of a man who was rushed to the hospital after he presented flu-like symptoms at a Braintree clinic that could be consistent with Ebola.

The episode, which occurred Sunday afternoon, spawned national headlines — as have similar reports from several other U.S. cities — the most recent being Kansas City, Kan.

The unnamed patient had recently returned from West Africa where the virus has killed at least 4000. Still, the odds of it being Ebola were said by doctors to be long, and Sunday night, Beth Israel "determined with certainty the patient does not have Ebola Virus Disease."

However, as if to underscore the heightened sense of community awareness, at approximately the same time as the city of Boston and Beth Israel Medical Center were briefing reporters Monday, news came via Twitter that after a 13-hour flight from Dubai, an Emirates airliner was circling Logan Airport waiting for an emergency response team.

Once the flight from Dubai landed, a five-member team — clad in hazmat suits — took five passengers suffering fevers or flu-like symptoms off the plane and sent them to Boston Medical Center and Mass General Hospital. As of 7 p.m., two of the five had tested negative for Ebola.

A spokesman for Massport, which runs Logan, explained that authorities exhibited heightened caution.

In Dallas, health officials are working overtime to locate and observe medical personnel who cared for the late Thomas Eric Duncan, the Liberian national who succumbed to Ebola after having first been sent back to the home of relatives with whom he was staying after a visit to the emergency room of the Texas Health Presbyterian Hospital.

Since Duncan’s death, two nurses from Texas Presbyterian have been diagnosed with Ebola. The director of the Centers for Disease Control and Prevention (CDC), Dr. Tom Frieden, allows for the possibility that others from the hospital might develop the disease.

Ebola can be transmitted only through bodily contact. The nurse who first contracted the disease while caring for Duncan is thought to have violated protocols when changing out of her protective clothing.

The phrase sounds more inflammatory than intended. Even the smallest unintentional deviation from proscribed procedure can result in infection.

"You don't scapegoat and blame when you have a disease outbreak," Bonnie Castillo, of National Nurses United, told Reuters on Sunday.

In Guinea, Liberia, and Sierra Leone — the epicenter of the outbreak — caregivers account for almost 10 percent of the deaths.

In an effort to stop the spread of Ebola in the U.S., five national airports with traffic to and from West Africa will screen arriving passengers. That process began at New York's JFK International Airport this past weekend. Customs and health officials identified 91 arriving passengers as having a higher risk of being infected with Ebola based on their recent travel. Five were sent for further evaluation. None were determined to have Ebola.