Health District Confirms First Case of Clade I Mpox in Clark County Resident With No Travel History

LAS VEGAS, NV — The Southern Nevada Health District (SNHD) has confirmed the first reported local case of Clade I mpox in a Clark County resident, marking a critical epidemiological milestone for public health authorities in the Las Vegas Valley.

According to formal health dispatches issued by SNHD communicable disease surveillance teams, the affected individual tested positive following clinical evaluations and laboratory verification.

Significantly, investigators determined that the patient had no recent international or out-of-state travel history, indicating that the infection was acquired via local community exposure rather than importation from foreign hotspots.

The confirmation follows an alert from federal health agencies monitoring global strains, prompting Southern Nevada health officials to expand contact tracing protocols and issue clinical guidance to regional hospital networks, urgent care clinics, and community health centers.

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|          CLARK COUNTY CLADE I MPOX DOSSIER             |
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|  - Issuing Agency: Southern Nevada Health District     |
|    (Office of Communicable Disease & Epidemiology)     |
|  - Geographic Locus: Clark County / Las Vegas Valley   |
|  - Incident Classification: Infectious Disease Alert   |
|  - Strain Verified: Clade I Mpox (First County Case)   |
|  - Exposure Dynamic: Local Community Transmission;     |
|    Zero Documented Out-of-State Travel History         |
|  - Active Public Health Measures:                      |
|      • Comprehensive Contact Tracing & Case Isolation  |
|      • Physician Surveillance Guidance to Hospitals    |
|      • Public Vaccination Clinics (JYNNEOS Vaccine)    |
|  - Co-Occurring Trend: Recent Increase in Clade II     |
|    Cases Documented Across Southern Nevada             |
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Community Transmission and Clinical Guidance

Unlike the milder Clade II strain that circulated widely during the 2022 global outbreak, Clade I has historically demonstrated elevated transmission rates and more severe clinical presentations.

Public health investigators are actively mapping the individual’s potential contact timeline to identify and offer post-exposure prophylaxis (PEP) to close contacts.

The health district emphasized that transmission primarily occurs through direct physical contact with infectious lesions, bodily fluids, or respiratory droplets during prolonged, close face-to-face interactions, as well as contact with contaminated linens or surfaces.

“Recognizing symptoms early and seeking medical evaluation is vital,” SNHD officials stated in their advisory, urging clinicians across Clark County to immediately report suspected cases presenting with unexplained fever, swollen lymph nodes, headache, muscle aches, and distinctive vesicular rashes.

The detection comes as regional clinics report a concurrent uptick in local Clade II mpox infections, prompting renewed calls for eligible residents—particularly high-risk demographics and healthcare workers—to complete the two-dose JYNNEOS vaccine series.

Vaccine Access and Public Health Recommendations

SNHD operates walk-in and appointment-based immunization clinics throughout the valley, offering free and low-cost vaccine access at several health centers.

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|             PUBLIC HEALTH ACTION STEPS                 |
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|  • Vaccine Availability: Two-dose JYNNEOS regimen      |
|    available at SNHD Public Health Centers valley-wide |
|  • Clinical Protocols: Healthcare providers mandated   |
|    to report suspected presentations within 24 hours   |
|  • Public Guidance: Self-isolate immediately upon      |
|    developing unexplained rashes, blisters, or fever   |
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Health officials advise that individuals exhibiting potential symptoms should isolate from household members, cover lesions, avoid sharing towels or bedding, and schedule an evaluation with a medical provider before visiting walk-in clinics.

Additional information on vaccine eligibility, testing locations, and symptom monitoring is available through official health district portals at snhd.info or by calling (702) 759-4636.

Source: Southern Nevada Health District Official Public Health Releases, Nevada Department of Health and Human Services Epidemiology Records.