(NEXSTAR) – Passengers aboard a United Airways flight from Vancouver to Houston reported feeling in poor health upon arrival Friday afternoon, prompting to the airline to take the airplane out of service for a “deep cleansing,” a United spokesperson confirmed.

A complete of 25 passengers had been sickened, Martee Black, a spokesperson for the Houston Fireplace Division, informed Nexstar. Three had been handled on the scene at George Bush Intercontinental airport, in line with the Houston Airport System; the remaining elected to proceed on their journey or head residence.

“Public well being officers from CDC’s Houston Port Well being Station labored with EMS to guage in poor health passengers on board,” a spokesperson for the CDC wrote in an emailed assertion obtained by Nexstar.

Many of the sickened passengers had solely “delicate GI signs,” the CDC added, and none had been exhibiting a fever.

“No passengers met CDC standards for additional public well being follow-up,” the CDC wrote. “Passengers from the flight continued with their journey plans.”

Black, of the Houston Fireplace Division, mentioned the sickened passengers had been beforehand on a cruise collectively. (Round 75 of the United passengers, complete, had been on that very same cruise, HFD mentioned.) United Airways, in its assertion, additionally indicated that not less than “a number of” of the sickened passengers had “been on the identical cruise” previous to boarding the flight in Vancouver.

Neither the HFD, nor United, mentioned which cruise the passengers might have taken.

“United Airways is actively coordinating with well being authorities to handle the state of affairs,” an airline spokesperson mentioned. “As a precautionary measure, the plane will probably be faraway from service and undergo a deep cleansing earlier than returning to service. Guaranteeing the well being and security of our passengers and crew stays our high precedence.”

Circumstances of norovirus on cruise ships, in the meantime, have been reported on a number of totally different cruise traces in latest months, sickening a whole bunch of passengers, in line with the CDC.

Outbreaks of norovirus are mentioned to be the “most frequent” reason for abdomen bugs on cruise ships, the CDC notes, although cruises are a comparatively uncommon setting for such outbreaks, accounting for under about 1% within the U.S., the company says. (They’re extra steadily reported in well being care services, eating places and baby care facilities.) Nonetheless, such outbreaks might be “particularly difficult to manage” on cruise vessels due to passengers sharing leisure and eating areas, the CDC says.