The U.S. tourist who was airlifted to Florida after falling ill at a Bahamas resort in an incident that left her husband and another American couple dead remains in good condition Thursday, a hospital spokesperson tells Fox News Digital. 

Donnis Chiarella, 65, is the lone survivor after the Americans were found dead in a villa at the Sandals Emerald Bay resort in Great Exuma on Friday. She is currently being treated at HCA Florida Kendall Hospital in Miami. 

"She is still in good condition," a spokesperson at the facility said. 

Sandals Resort deaths.

The pool area of the Sandals Emerald Bay resort in June 2016. (Dimitrios Kambouris/Getty Images for Sandals)

POLICE EXAMINING FOOD AT BAHAMAS RESORT AFTER 3 AMERICANS FOUND DEAD 

The other victims have been identified as Michael Phillips, 68, and Robbie Phillips, 65, of Tennessee, and Vincent Chiarella, 64, of Florida. 

Police in the Bahamas investigating the deaths have been looking into whether the food the victims ate played a role, in addition to possible leaks from the water heater, air conditioner and propane supply of the unit they were staying in, according to reports. 

Sandals Resort deaths.

Robbie and Michael Phillips, two of the victims discovered dead on May 6 at Sandals Emerald Bay in Great Exuma, Bahamas. Samples extracted from the couple and a Florida resident who also died have been sent to a U.S. lab for testing.  (Facebook/Thesandalslady)

Samples taken from the three victims have been sent to a lab in Philadelphia for examination, with toxicology results expected next week. 

CLICK HERE TO GET THE FOX NEWS APP 

The causes of the deaths remain unknown. 

Sandals has not responded to recent requests from Fox News Digital for comment.