bacterial disease Camel, Dromedary camel Vaccine available Transmissible to humans

Camel pasteurellosis

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Definition Signs Causes Transmission Diagnosis Treatment Prevention Vaccination Complications When to see a vet Zoonosis Prognosis FAQ Sources Affected species

What is it?

Pasteurellosis is an acute bacterial disease which affects camels (dromedaries), caused mainly by bacteria of the Pasteurella genus (notably Pasteurella multocida) and sometimes Mannheimia haemolytica.\n\nIt most often manifests itself by serious respiratory damage, sometimes accompanied by a septicemic form (generalized infection in the blood) which can lead to death within a few hours to a few days.\n\nThis disease has been known for a long time in large ruminants and camelids, where it is sometimes called “hemorrhagic septicemia”. It represents a significant economic threat for camel breeding, particularly in periods of stress (transport, heat, change of diet).

Key point

The septicemic form of pasteurellosis can lead to the death of the animal within a few hours to a few days: any suspicion requires urgent veterinary consultation.

Commonly observed signs

These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.

Related signs — each one links to its page:

Fever Cough Difficulty breathing Runny nose Loss of appetite Reduction Swelling Rapid breathing Excessive salivation Pale mucous membranes Lying animal that does not get up

The clinical signs often appear suddenly.\n\nWe frequently observe a high fever, marked depression, loss of appetite and difficult or rapid breathing.\n\nA cough and a runny nose, sometimes tinged with blood, may accompany lung damage.\n\nIn the most serious forms (sepsis), swelling of the throat and neck may appear, as well as excessive salivation and pale or bluish mucous membranes linked to the withdrawal. of oxygen.\n\nThe animal may end up lying down and never getting up again, a sign of a very serious development requiring emergency treatment.\n\nIn some cases, death occurs very quickly, sometimes before obvious signs can be observed by the breeder.

When to consult without delay

This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.

Causes and risk factors

The disease is caused by bacteria of the genus Pasteurella, particularly Pasteurella multocida, sometimes associated with Mannheimia haemolytica.\n\nThese bacteria can be present naturally in the upper respiratory tract of healthy animals, without causing disease. They become pathogenic (capable of making people sick) when the animal's immune defenses weaken.

Several factors favor the appearance of the disease: stress linked to transport or sudden change of environment, extreme heat, crowding of animals, unsuitable or insufficient nutrition, as well as pre-existing respiratory viral diseases which weaken the animal's defenses.\n\nYoung camels and weakened or poorly nourished animals are generally more vulnerable.

Transmission

Transmission occurs mainly by the respiratory route, via droplets emitted by the coughs or sneezes of an infected animal, or by close contact between animals.\n\nThe bacteria can also be carried without symptoms by certain camels, which then become a source of contamination for the herd, particularly in times of stress or gathering (markets, transport, change of pasture).

Diagnosis and care

Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.

The veterinarian relies on the clinical signs (fever, respiratory distress, rapid progression) and the breeding context (recent stress, grouped cases).\n\nThe definitive diagnosis requires samples (blood, respiratory secretions) analyzed in the laboratory to identify the bacteria in question, because other respiratory diseases in camels can give similar signs.

Treatment

Treatment is based on appropriate antibiotic therapy, prescribed and monitored by a veterinarian, combined with supportive care (rehydration, anti-inflammatories) depending on the animal's condition.\n\nEarly treatment clearly improves the chances of survival, particularly in septicemic forms which progress very quickly.

Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.

Prevention

Prevention is based on reducing stress factors: avoiding prolonged transport in poor conditions, limiting crowding of animals, ensuring a balanced diet and sufficient access to water.\n\nVaccination exists in certain camel breeding regions, particularly against hemorrhagic septicemia, but its availability and use vary depending on the country.\n\nGood hygiene in gathering places (markets, water points) and the rapid isolation of sick animals limit the spread within the herd.

Vaccination

Vaccines against hemorrhagic septicemia (severe form of pasteurellosis) exist and are used in cattle and sometimes in camels in certain breeding regions. Their availability for camels varies depending on the country; Advice from a local veterinarian is necessary for available options.

Possible complications

Without rapid treatment, the disease can progress to generalized septicemia, severe pneumonia, or even death of the animal.\n\nChronic respiratory after-effects may persist in animals that have survived a severe form.

When to see a veterinarian

Fever associated with difficulty breathing in a camel

Persistent cough with runny nose, especially after transporting or gathering animals

Appearance of several similar cases in the same herd in a short time

Slaughtered animal that refuses to get up or eat

Visible swelling in the neck or throat

Transmission to humans

Transmission to humans remains rare, but skin or respiratory infections by Pasteurella multocida have been reported following close contact with sick animals or bites/scratches. People in direct contact with sick camels must adopt basic hygiene measures (hand washing, wound protection).

Prognosis

The prognosis depends on the speed of treatment. Treated early, the simple respiratory form can progress favorably.\n\nThe acute septicemic form, however, remains serious, with a risk of rapid death even under treatment, particularly in young or already weakened animals.

Frequently asked questions

Is camel pasteurellosis contagious to humans?

The risk is low but exists, especially in the event of close contact or a wound. It is recommended to wash your hands after handling a sick animal and to consult a doctor if you develop symptoms after contact.

Can camels be vaccinated against this disease?

Vaccines against hemorrhagic septicemia exist in certain regions, but their use in dromedaries is not widespread everywhere. A local veterinarian can advise on available options.

Why does this disease often appear after transportation?

The stress of transport, heat and crowding weaken the camel's immune defenses, which allows bacteria already present in its respiratory tract to become pathogenic.

Can a cured camel retransmit the disease?

Some animals can remain healthy carriers of the bacteria after recovery and represent a source of contamination for the herd, particularly in times of stress.