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Q fever

Also called: Q fever

A bacterial infection from farm animals causing high fever, headache, and pneumonia, sometimes becoming long-lasting.

SourceSheep, goats, cattle

Overview

Spread by breathing dust from farm animals.

Many have flu-like illness.

Symptoms

Common signs:

  • High fever and headache

Less common

  • Cough
  • Muscle aches

When to get medical care

Call 911This isn't an emergency by itself. Call 911 for trouble breathing, chest pain, or fainting.
Get care todayFever with farm exposure.
See a doctor soonSymptoms that last or keep coming back.

Causes

Coxiella burnetii.

Does it spread or run in families?

  • Yes, it can spread from person to person.
  • How it spreads: breathing it in or contact with animals.
  • Don't share towels, hats, combs, or bedding while it's being treated.

Who is more likely to get it

  • Farm workers

Diagnosis

A clinician asks about your symptoms and may order tests.

The exam

A physical exam.

Tests

Tests, if needed:

  • Blood tests:

Treatment

Treatment depends on the cause and how severe it is.

Self-care

  • Rest
  • Drink fluids

Medicines

Medicines that may help:

MedicineHelps withGood to know
Doxycycline
Q fever

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

To lower your risk or prevent problems:

  • Avoid animal birth fluids

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to an infectious disease specialist, for hard-to-treat infections.

Back to school, work, or sports

  • Stay home until you've had no fever for 24 hours without fever medicine and you're feeling better.
  • For the next 5 days, wash hands often and wear a mask around others.

Children, pregnancy, and older adults

  • Farm workers: Higher risk.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Some infections can pass to the baby during pregnancy or birth. Tell your provider if you've been exposed.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

Outlook depends on the cause; early care helps.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

Questions to ask

  • What's causing this?
  • What treatment do you recommend?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Q fever

Sources

Last updated 2026-11-12.