METHODS: In 2015, the New York State Department of Health (NYSDOH) implemented a pilot surveillance system for HAB-associated illnesses within 15 (25%) of the 61 counties in New York State (NYS). Surveillance activities included the collection of self-reported illness, examination of Poison Control Center data, analysis of syndromic surveillance data, and increased outreach to the public, physicians, and veterinarians. Each available individual, parent, or pet owner was interviewed using an in-depth questionnaire that collected information about symptoms and exposure. To classify cases, we used the Centers for Disease Control and Prevention HAB-associated case definition.
RESULTS: A total of 48 potential HAB exposure with symptoms were reported to NYSDOH. Of these, there were 32 human cases and 3 dog cases. Among humans, the most commonly reported symptoms included: rash or skin irritation (69%), respiratory symptoms (50%), gastrointestinal symptoms (47%), and other general symptoms (34%). All human illnesses were associated with recreational exposure to HABs. Among animals, the most common reported symptoms included: gastrointestinal symptoms (100%) and neurological symptoms (67%).
CONCLUSIONS: Through the implementation of a pilot surveillance system, a total of 35 HAB-associated human and animal illnesses were reported during 2015 in NYS. With the increased prevalence of HABs and the associated public health concerns, it is important for state and local health agencies to implement effective outreach and interventions to minimize exposures.