How do dogs and cats catch campylobacteriosis?

Campylobacter is commonly spread through contaminated food or water and through contact with infected feces. Raw food or unsanitary environments increase the risk. If you suspect infection, ask your vet about further testing.

How does the vet confirm a Campylobacter infection?

Vets typically test a fresh stool sample by microscopy, bacterial culture, or PCR to identify the pathogen, alongside blood tests to assess the pet's overall condition.

Can campylobacteriosis spread to family members or other pets?

Campylobacter has some zoonotic potential. Families should practice careful hand hygiene, clean up feces promptly, and isolate the affected pet from others. Consult your vet or a medical professional if you have concerns.

How long after treatment will symptoms improve?

Most pets improve within a few days of supportive care and appropriate treatment, but the exact timeline depends on the severity of the infection and whether dehydration or complications are present. Follow your vet's recommended check-up schedule.

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

Campylobacteriosis in Dogs & Cats: Symptoms, Diagnosis & Care [2025]

Campylobacteriosis is a common intestinal infection that can cause diarrhea. It is zoonotic, so maintaining good hygiene is essential.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: CDC, WSAVA, ISFM

When to See a Vet

Seek Emergency Care Immediately

•Persistent vomiting with inability to eat or drink
•Frequent stools with large amounts of bright red blood
•Visibly dry nose and mouth with loss of skin elasticity

Schedule a Clinic Visit Soon (within 24–72 hours)

•Intermittent vomiting but still able to drink and eat small amounts
•Mild loose stools or stools with a small amount of mucus, but alert and active
•Noticeably reduced appetite but still drinking water

01What Symptoms Indicate Something Is Wrong?

Campylobacter infections primarily affect the digestive system, with common signs including vomiting, diarrhea, and changes in appetite or energy levels. Fever or dehydration warrant extra vigilance.

Noticeably reduced appetite or short-term refusal to eat
Repeated vomiting, including stomach fluid or bile
Watery, mucus-streaked, or blood-tinged stools
Persistent or intermittent fever and abnormal body temperature
Lethargy, reduced activity, or loss of interest in play
If any of the above symptoms appear, schedule a vet visit promptly

Seek emergency care immediately if you notice the following symptoms:

⚠️ Seek veterinary care immediately if your pet has heavy bloody stools, severe dehydration, or a persistently high fever

02How to Monitor at Home — Key Signs and When to Seek Emergency Care

Keeping detailed records of symptoms at home helps the vet quickly assess disease progression and severity. Note times and frequencies as specific numbers.

Record when symptoms first appeared and how often they occur (number of vomiting or diarrhea episodes)
Take daily temperature readings and note the values and times
Film vomiting or diarrhea episodes and photograph stools
Note food types, amounts eaten, and any refusal to eat
Check for signs of dehydration: dry mouth and nose, reduced skin elasticity
If symptoms persist or worsen, schedule a vet visit as soon as possible

03How Will the Vet Diagnose My Pet? Common Tests Explained

At the clinic, your vet will typically perform a physical examination alongside laboratory tests, focusing on identifying the pathogen and assessing dehydration and organ function.

Full physical examination

assess dehydration, abdominal pain, and vital signs

Complete blood count (CBC)

evaluate infection markers and overall blood status

Blood biochemistry panel

assess liver, kidney, and electrolyte function

Fecal examination and bacterial culture

identify possible bacterial infection

PCR (genetic testing)

improves Campylobacter detection rate and diagnostic accuracy

Abdominal ultrasound or imaging as needed to rule out complications

04Post-Diagnosis Treatment and Care — Medications, Diet Adjustments, and Home Management

Treatment focuses on controlling the infection and providing supportive care, adjusted according to test results and clinical response, with scheduled follow-up visits.

Your vet will select appropriate anti-infective treatment based on test results
Temporarily switch to a bland, easily digestible prescription diet with smaller, more frequent meals
Intravenous fluids may be given at the clinic to correct dehydration and electrolyte imbalances
Attend follow-up appointments as advised and monitor blood or stool test results
Isolate the affected pet at home and thoroughly disinfect the environment to prevent cross-infection
If symptoms do not improve or recur, arrange a follow-up with an internal medicine or infectious disease specialist

05What to Prepare Before the Vet Visit — Helping Your Vet Quickly Identify the Cause

Write a timeline of symptom onset and how they have changed over time

List recent foods given (including raw food) and any potential exposure history

Bring a vomit sample or fresh stool sample for laboratory testing

Prepare a list of current medications and supplements your pet is taking

Record video of symptoms (vomiting, defecating, or energy level) for the vet to review

It is recommended to call ahead and book a clinic that can perform PCR or bacterial culture

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.