Southern Nevada Reports First Confirmed Clade I Mpox Case in Clark County Resident
The Southern Nevada Health District has reported the first confirmed case of clade I mpox in a Clark County resident. This development occurs alongside a recent increase in clade II mpox cases in the area.

Las Vegas, NV, October 20, 2026 —
The Southern Nevada Health District has reported the first confirmed case of clade I mpox in a Clark County resident, a development occurring as clade II mpox cases have recently increased in the area.
The report identifies the case as the first confirmed clade I case in a Clark County resident. It does not provide the date the case was confirmed, details about the resident, or information about how the infection was identified. The district’s report, as summarized, also does not state how many clade II cases were recorded or the period covered by the recent increase.
The two developments concern different mpox clades: the newly reported case is clade I, while the recent increase described in the area involves clade II. No further information was provided about a connection between the clade I case and the clade II cases. The report also does not specify whether the district announced any additional measures or guidance in response.
Information about the case’s circumstances, possible exposures, and the resident’s condition was not provided. The summary likewise does not include comments from health officials or other sources. Without those details, the reported information establishes the case’s significance in Clark County and notes the parallel rise in clade II cases, but does not explain the scale or circumstances of either development.
The Southern Nevada Health District is the reporting agency named in the announcement. Further details, including the timing of the report and additional case figures, were not included in the information provided.
Story summarized from the original created by Tony Garcia on www.reviewjournal.com, see more information here.
