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Update on Outbreak of Legionnaire’s Disease Associated with the Area of Ashworth Avenue at Hampton, NH
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Bureau of Infectious Disease Control
Publish Date:
September 6, 2018

Concord, NH – The New Hampshire Department of Health and Human Services’ (DHHS) Division of Public Health Services (DPHS), the U.S. Centers for Disease Control and Prevention (CDC), and the Town of Hampton continue to investigate an outbreak of Legionnaire’s Disease associated with the Ashworth Avenue area of Hampton, NH.

No additional cases have been confirmed since the previous update. A total of 15 individuals have been confirmed to have Legionnaire’s disease associated with Ashworth Avenue and the surrounding area. The last illness onset date is August 24th, which has not changed.

Hampton Legionella Investigation Summary Report

Number of Confirmed Illnesses Total
Illness onset dates 6/14/18 – 8/24/2018
Hospitalized 13
Deaths 1
Total 15

According to the CDC, Legionella is found naturally in fresh water. When present in a building’s water system, it can grow and spread in devices, such as hot water tanks, showerheads, and hot tubs that are not well maintained. This is why it is so important that building owners and managers take steps to reduce the risk of Legionella and keep the water in their buildings safe.

The Sands Resort, which received an order from DHHS last weekend to begin immediate remediation of the facility’s water system, is complying with the order. The resort has procured an environmental consultant and professional remediation of the building’s water system is underway. The hot tubs at the Sands Resort and the Harris Sea Ranch Motel remain closed.

Because DHHS has not identified any new individuals with Legionnaires’ disease who report spending time in Hampton after the hot tubs were closed, and because DHHS and the CDC have not identified any new potential sources of community Legionella exposure, we believe the most likely sources of exposure have been eliminated or are being addressed through water system remediation. Therefore, DHHS believes that the current overall health risk to the community is low.

DHHS continues to work collaboratively with the CDC and Hampton officials on the investigation. Full environmental tests from multiple sites in Ashworth Avenue and surrounding areas are expected to be available sometime next week. In addition, several potential Legionnaires’ disease cases are still being investigated. DHHS will provide additional information and updates as they are available.

For more information on the Legionella outbreak, please visit

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New Hampshire Department of Health and Human Services
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