Another case of Legionnaires' Disease has been confirmed by the New Hampshire Department of Health and Human Services (DHHS), bringing the total to 15.
One person has died from the disease while the others have been hospitalized.
Health officials continue to investigate the outbreak which occurred in the Ashworth Avenue area of Hampton. Authorities said preliminary environmental culture results from the Sands Resort and other locations are expected to be available in the coming days, but full culture results can take up to two weeks.
As a result, several hot tub spas in the area were closed as a precaution.
Legionnaires' disease is bacterial pneumonia spread by inhaling droplets of water contaminated with the bacteria.
New Hampshire averages about 32 cases of Legionnaires' disease each year. Nationwide, the Centers for Disease Control and Prevention said there were 6,100 cases in 2016.