Can feline poxvirus spread to humans or other pets?

Feline poxvirus is a contagious skin virus that can spread to other animals. When in contact with an infected cat, avoid touching lesions directly and wash hands thoroughly. If you are concerned about transmission to humans, consult your vet.

When is PCR testing most helpful for diagnosis?

PCR testing is most useful when suspicious symptoms are present (skin ulcers, discharge, or systemic signs). Detection rates are generally highest in the early days after symptom onset. Follow your vet's sampling instructions for the best results.

How should I care for an infected cat at home?

Focus on maintaining hydration and nutrition, keep lesions clean, and prevent contact with other animals. If symptoms worsen or you are unsure how to manage them, contact your vet for further guidance.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Feline Poxvirus Infection in Cats: Lethargy, Skin Lesions & PCR Testing [2025]

Poxvirus infection in cats, primarily presenting with skin lesions

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: ISFM, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate veterinary care (emergency)

•Persistent inability to drink or refusal to eat for more than 24 hours
•Frequent vomiting with obvious signs of dehydration
•Rapid breathing or marked panting that will not settle down

Schedule a veterinary visit soon (within 24–72 hours)

•Noticeably low spirits with clearly reduced activity
•Skin developing ulcers, pus, or persistent oozing of pus
•Continuously increasing nasal and eye discharge with a change in color

01What symptoms indicate something is wrong?

Feline poxvirus infection often presents with both systemic symptoms and skin lesions, including reduced activity, changes in appetite, and respiratory or gastrointestinal discomfort.

Lethargy, noticeably reduced activity, or prolonged drowsiness
Reduced appetite or a sudden refusal to eat
Vomiting or diarrhea, possibly accompanied by signs of dehydration (dry mouth, poor skin elasticity)
Skin itching, scaling, redness, or the appearance of ulcers and scabs
Increased nasal discharge, eye discharge, or other respiratory secretions

02How to assess abnormalities at home: key observations and emergency criteria

Home observations help your vet quickly assess the disease progression and severity — record timing, frequency, and visual documentation to bring to the appointment.

Record the date symptoms first appeared and when each symptom began
Track daily changes and trends in food intake and water consumption
Count vomiting episodes and note stool consistency and frequency
Photograph or video skin lesions, nasal and eye discharge, and affected areas
Record videos of changes in activity level, movement, and breathing rate
If symptoms continue to worsen or show no improvement, arrange a vet appointment promptly

03How will the vet diagnose this? Common diagnostic tests

Upon arrival, the vet will conduct a comprehensive assessment including a physical examination and laboratory tests, with pathology or imaging arranged as needed to confirm infection and rule out complications.

Full physical examination

assessing alertness, body temperature, skin condition, and lymph node status

Blood and biochemistry tests

evaluating dehydration and whether organ function is affected

PCR testing

molecular detection to confirm the presence of the poxvirus

Skin scraping or tissue biopsy

to evaluate infection type and degree of inflammation

Advanced imaging (e.g. CT scan) when needed to assess deeper complications or tissue damage

Book a clinic with PCR capability or an infectious disease specialist for definitive diagnosis

04What treatment and care are needed after diagnosis? Medications, dietary adjustments, and care guide

Feline poxvirus treatment centres on supportive care, with bacterial co-infection management and skin care as needed; follow-up appointments and isolation measures are arranged to minimise transmission risk.

Supportive care focused on maintaining hydration and nutrition, with electrolyte supplementation
If bacterial co-infection is present, the vet will assess the need for antimicrobial treatment
Local wound care including cleaning lesions, protective dressings, and preventing self-trauma from scratching
Schedule follow-up blood tests or PCR as directed to monitor disease progression and treatment response
Home isolation and environmental disinfection to prevent transmission to other animals
If symptoms recur or fail to improve, arrange a specialist consultation or further diagnostic workup

05What to prepare before the vet visit: key information to help your vet diagnose quickly

Note the time symptoms began, the first symptom observed, and the order in which symptoms appeared

List recent daily food intake, number of vomiting episodes, and bowel movement records

Bring a list of all current medications and supplements

Photograph or video skin lesions, nasal and eye discharge, and any behavioural changes

Use a secure carrier and call ahead to book an appointment, informing the clinic of possible infection

Seek out a clinic with PCR testing capability or an infectious disease specialist

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.