Can cytauxzoonosis spread to other pets?

Transmission varies depending on the pathogen. Some pathogens can spread via arthropod vectors or bodily fluids. If infection is suspected, consult your vet to confirm testing requirements and whether isolation is necessary.

What tests does the vet typically run to find the cause?

Common tests include a blood count, biochemistry panel, PCR pathogen testing, and abdominal ultrasound or X-rays. Advanced imaging may be arranged if needed to assess organ damage.

What home care and observations can I do?

You can monitor and record your pet's appetite, water intake, temperature, and elimination patterns. Photographing or filming any symptom changes provides valuable information to help your vet assess the condition and prioritise tests.

What is the prognosis after treatment?

Prognosis depends on the causative pathogen and how early the condition is identified. Early detection and appropriate supportive treatment generally lead to better outcomes. Your vet's assessment and recommendations are the best guide for your pet's specific situation.

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

Cytauxzoonosis in Cats & Dogs: Symptoms, PCR Testing & Home Care [2025]

Cytauxzoonosis is a tick-borne parasitic infection that causes severe anemia and jaundice, with a high mortality rate requiring aggressive treatment

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: AVMA, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate emergency care

•Persistent high fever with refusal to drink or eat
•Severe dehydration with significantly reduced skin elasticity
•Lethargy or no noticeable response to sounds or movement

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

•Significantly reduced appetite, refusing or eating much less at meals
•Recurring fever with fluctuating temperature and no improvement
•Jaundice — visible yellowing of the whites of the eyes or skin

01What Symptoms Indicate a Problem?

Cytauxzoonosis typically causes systemic symptoms, with reduced appetite, fever, jaundice, and lethargy being the most common presentations. Seek emergency care immediately if severe dehydration or extreme lethargy occurs.

Noticeably reduced appetite or complete refusal to eat
Persistent or recurring fever that is difficult to resolve
Jaundice (yellowing) of the skin, whites of the eyes, or mucous membranes
Changes in water intake or signs of dehydration
Depression, lethargy, and significantly reduced activity

Seek emergency care immediately if you notice the following symptoms:

⚠️ Persistent high fever with inability to drink water
⚠️ Severe dehydration with poor skin elasticity
⚠️ Extreme drowsiness or unresponsiveness — seek emergency veterinary care immediately

02How to Assess Abnormalities at Home: Key Observations and Emergency Criteria

Observing and documenting key changes at home helps your vet assess the condition and prioritise the appropriate tests.

Record appetite, food intake, and when refusal to eat began
Take repeated temperature readings and log the values with timestamps
Monitor activity level, mental alertness, and degree of lethargy
Note any changes in the frequency, colour, and volume of urination and bowel movements
Photograph or video-record symptoms and schedule a vet appointment as soon as possible

03How Will the Vet Make a Diagnosis? Common Examination Steps

The vet will begin with a physical examination and combine it with blood tests and imaging to assess for infection, organ damage, or dehydration.

Physical examination

palpation, auscultation, and general condition assessment

Blood tests

complete blood count and biochemistry to evaluate organ function

Imaging

X-rays or abdominal ultrasound to assess organ changes

PCR testing

to detect specific pathogens and confirm the source of infection

Advanced imaging such as CT if required for further evaluation

04How Is the Condition Treated After Diagnosis? Medications, Diet, and Care Guide

Treatment is cause-directed and typically includes medication alongside supportive care. Close monitoring and regular check-ups are needed after discharge to track recovery.

Medication and supportive therapy prescribed by the vet based on test results
Dietary adjustments with ongoing hydration support and monitoring
Severe cases may require hospitalisation with IV fluids and close clinical monitoring
Regular follow-up visits to track blood test and imaging results to evaluate treatment response
If symptoms recur or do not improve, a specialist referral is recommended

05What to Prepare Before the Vet Visit: Key Information to Help Your Vet Quickly Identify the Cause

Record when symptoms started, how they have progressed, and any measurable data

Note recent diet, water intake, and any changes in feeding habits

Bring a list of current medications, supplements, and prescriptions

Prepare photos or short videos of symptoms for the vet's reference

Bring a leash or carrier and book your appointment online or by phone in advance

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.