“Here we describe the first case of a dog with confirmed monkeypox virus infection that might have been acquired through human transmission.”
12 days after symptom onset [by two male patients], their male Italian greyhound, aged 4 years and with no previous medical disorders, presented with mucocutaneous lesions, including abdomen pustules and a thin anal ulceration. The dog tested positive for monkeypox virus by use of a PCR protocol that involved scraping skin lesions and swabbing the anus and oral cavity.
Trigger warning: the following link contains extremely graphic images
A snippet from recently updated guidance on monkeypox and pets from the CDC: