Pleuropneumonia in Goats: Causes, Signs & Emergency Care

Pleuropneumonia is a serious infection that affects both the lungs and the pleura, the thin tissue lining the lungs and chest wall. When these tissues become inflamed, breathing becomes painful and less effective. A goat may breathe faster, cough, stop eating, or stand apart from the herd because moving air in and out of the chest hurts.

In goats, pleuropneumonia is often discussed in connection with Mycoplasma infections. The most severe form, contagious caprine pleuropneumonia (CCPP), is caused by Mycoplasma capricolum subsp. capripneumoniae and is considered a major goat disease in endemic regions outside the US. Other bacteria, including Mannheimia haemolytica and Pasteurella multocida, can also cause severe pneumonia or pleuropneumonia in goats, especially when stress, transport, crowding, weather swings, or other illness weaken normal respiratory defenses.

This is an emergency because goats can hide illness until they are very sick. Some cases respond well when treatment starts early. Others become life-threatening quickly, especially if there is high fever, severe chest pain, dehydration, or low oxygen levels. Your vet can help confirm the cause, guide treatment options, and advise whether herd mates are also at risk.

Pleuropneumonia in goats is usually caused by infectious organisms, especially bacteria or Mycoplasma. In severe outbreaks, Mycoplasma capricolum subsp. capripneumoniae causes contagious caprine pleuropneumonia. Other respiratory pathogens in goats include Mannheimia haemolytica, Pasteurella multocida, and other Mycoplasma species. Mixed infections can happen, and one organism may open the door for another.

Stress often plays a major role. Transport, overcrowding, poor ventilation, sudden weather changes, dust, parasite burden, poor nutrition, and recent mixing with unfamiliar animals can all reduce a goat's ability to clear germs from the airways. Kids and immunologically stressed adults may be affected more severely.

Spread usually happens through close contact and respiratory secretions. A newly introduced goat can bring infection into a herd even before obvious signs appear. That is why isolation of sick animals and quarantine of new arrivals are important parts of both treatment and prevention.

Because several diseases can look similar, your vet may also consider lungworms, aspiration pneumonia, caseous lymphadenitis with chest involvement, viral respiratory disease, or chronic conditions such as caprine arthritis encephalitis-associated lung disease in the differential list.

Your vet will start with a physical exam, temperature, breathing assessment, and chest auscultation. Crackles, reduced lung sounds, painful breathing, or muffled sounds from pleural fluid can all raise concern. In a very sick goat, your vet may begin treatment while also collecting samples, because waiting for every result can be risky.

Diagnostics may include bloodwork, ultrasound of the chest, and sometimes radiographs if they are practical for the setting. Ultrasound can help identify pleural fluid, fibrin, lung consolidation, or abscess-like changes. If fluid is present, your vet may collect a sample for cytology, culture, or PCR. Nasal swabs, deep respiratory samples, or tissue from a deceased animal may also be used, especially when herd-level disease is suspected.

For suspected Mycoplasma disease, PCR testing is especially helpful and may be performed on pleural fluid, lung tissue, or other samples depending on the case. Serology can support herd surveillance, but it is less useful for confirming an individual acute case. If a goat dies, necropsy can be one of the most valuable and cost-conscious ways to identify the cause and protect the rest of the herd.

Diagnosis is not only about naming the organism. Your vet is also judging severity, contagious risk, likely response to treatment, and whether the goat can be managed on-farm or needs hospital-level support.

Prevention starts with reducing exposure and reducing stress. Quarantine new goats before mixing them with the herd, and avoid introducing animals with cough, nasal discharge, fever, or recent unexplained illness. Good ventilation matters. Barns should move fresh air without creating constant drafts, and bedding should stay as dry and low-dust as possible.

Work with your vet on a herd health plan that includes parasite control, nutrition, vaccination review where relevant, and prompt isolation of any goat with respiratory signs. Overcrowding, long transport, abrupt ration changes, and weather stress can all increase the chance that a mild respiratory infection becomes severe pneumonia.

If one goat becomes sick, separate it from healthy herd mates and use dedicated buckets, feeders, and handling equipment when possible. Monitor temperatures and breathing in exposed animals. In some parts of the world, vaccines against contagious caprine pleuropneumonia are used, but availability and relevance depend on region and disease risk.

A necropsy after a death can be one of the most useful prevention tools for the rest of the herd. It may feel difficult in the moment, but getting an answer can help your vet shape treatment, quarantine, and biosecurity steps before more goats become ill.