Infectious respiratory particles exhaled by Clade IIb Mpox virus-infected macaques.

The respiratory viral shedding pattern of Mpox patients and the airborne transmissibility remain unclear. It is often challenging to determine the initial exposure time and infective dose at the time of exposure in Mpox patients, making it impractical to track the viral shedding pattern in human Mpox cases. Therefore, we monitored respiratory viral shedding in macaques experimentally infected with Clade IIb Mpox virus (MPXV), as well as the contamination of the ambient air. Our study shows MPXV-infected macaques had obvious...