Napa County health officials are keeping a close eye on a north Napa senior housing complex after two residents were diagnosed with Legionnaires’ disease in March and April. Both residents were successfully treated, and county staff have been tracking where they might have been exposed inside the property while running environmental tests. Authorities say there is still no evidence of any ongoing person-to-person spread.
Investigators carried out environmental testing at Rohlffs Manor, collecting 14 samples from eight locations. All of those samples came back negative for Legionella, according to The Press Democrat. Deputy public health officer Christine Wu told the outlet that the negative tests “don’t point to a definitive source,” and said the county will keep monitoring and collect more samples as needed. The two cases were reported in March and April, and both residents received treatment, the report noted.
What Investigators Looked For And Why
According to the CDC, Legionella bacteria thrive in warm, artificial water systems such as building plumbing, cooling towers and hot tubs, and typically spread when people inhale contaminated mist rather than through direct contact. Symptoms can resemble other forms of pneumonia and include cough, fever and trouble breathing, which is why public health teams collect detailed exposure histories and test patients specifically for Legionella. Early diagnosis helps clinicians select antibiotics that work against the infection.
Who Faces The Greatest Risk
County officials told The Press Democrat that people 50 and older, smokers, residents with chronic lung conditions and those with weakened immune systems face a higher risk of severe illness from Legionnaires’ disease. Families and caregivers of Rohlffs Manor residents were urged to keep an eye out for symptoms and to seek medical care quickly if they develop. Public health staff said they will notify the California Department of Public Health after each reported case as part of the standard investigation protocol.
Why Napa Pays Attention
Napa County has seen serious Legionnaires’ activity before. A downtown outbreak in 2022 put more than a dozen people in the hospital and led to one death, according to a report from the CDC. That investigation tied cases to a cooling tower and highlighted how quickly Legionella can strike vulnerable residents. The experience has pushed county investigators to move faster on sampling and tower remediation whenever tests hint at a possible cluster.
Where The Cases Were Reported
The March and April cases were reported at Rohlffs Manor, a large senior housing complex on Fair Drive in north Napa. The property, listed as Rohlffs Manor at 2400 Fair Drive, includes several hundred units, according to its profile on EAH Housing. In previous investigations, Napa County has traced Legionella to building systems and cooling towers, and the county posts information about those responses on its Napa County public alerts page.
What Residents And Families Should Do
Anyone who develops cough, fever or shortness of breath after living at or visiting a facility where Legionnaires’ disease cases have been reported should contact a healthcare provider and mention the possible exposure so the right tests can be ordered. California public health guidance includes resources for building managers and healthcare facilities on environmental assessments and testing protocols, according to the California Department of Public Health. In most cases, Legionnaires’ disease can be treated with antibiotics when it is caught early.
