Maricopa County public health officials are investigating a cluster of tuberculosis cases that they say is concentrated among people experiencing homelessness in the Phoenix area and are coordinating with local nonprofits to deliver testing and care.
Health department moves to targeted outreach
The Maricopa County Department of Public Health said the cluster is affecting the unhoused community but does not pose a broader risk to county residents. Officials declined to provide the exact location of the cases. Health staff are working with partners that serve people without housing to offer screening, education and treatment services directly to those at highest risk.
In statements forwarded to reporters, the health department emphasized that modern screening and available treatments make tuberculosis a manageable condition when cases are identified and treated.
“We appreciate MCDPH’s support in monitoring communicable diseases and offering regular guidance, testing, and immunizations,” said Amy Schwabenlender, CEO of Keys to Change.
Services and actions being deployed
- Education on how TB spreads and how it does not spread
- Free screening events targeted to those at higher risk
- Linkage to medical evaluation and treatment for people who test positive
The county said it routinely investigates active TB cases, identifies close contacts who may be at risk and connects patients with evaluation and treatment. For this cluster, officials said they are bringing those services directly to the population most affected through partner organizations.
| Action | Purpose |
|---|---|
| Community education | Reduce transmission by informing people how TB spreads and prevention steps |
| Free screening events | Identify active and latent TB cases among high-risk individuals |
| Direct linkage to care | Ensure those who test positive receive appropriate evaluation and treatment |
Context and implications
Tuberculosis, once a leading cause of infectious-disease mortality in the United States, is now largely controllable with routine screening and antibiotic regimens, public health officials noted. The disease can begin with few or no symptoms, which officials said makes screening important to prevent onward transmission and complications.
Clusters of TB in settings with congregate living or among vulnerable populations can present logistical challenges for public-health response because of barriers to access, the difficulty of maintaining continuity of care, and the need for outreach beyond traditional clinical settings. The county said it is partnering with organizations that provide shelter and services to bring testing and treatment to those at greatest risk.
Officials did not provide numbers of cases, names of specific locations or a timeline for the investigation in their statement. The largest local campus that assists with shelter and services, Keys to Change, told reporters it coordinates with the county health department on proactive and reactive measures but declined to answer questions specifically about the cluster.
Health departments typically follow established protocols for TB control, including identifying and testing close contacts, isolating infectious patients when needed, and ensuring completion of therapy to prevent relapse and drug resistance. In this instance, Maricopa County said it is hopeful that combined efforts by individuals, partner organizations and the public health department will limit the cluster’s impact.
Officials urged people who may have been exposed or who have symptoms consistent with TB to take advantage of screening events and to seek medical evaluation. Symptoms of active pulmonary TB can include persistent cough, fever, night sweats and weight loss, though early infection may be asymptomatic.
Maricopa County did not indicate whether the cases are drug-resistant or whether any hospitalizations have occurred. The department encouraged community partners to continue routine coordination for communicable-disease monitoring, testing and vaccination campaigns.
