Respiratory/Infectious Moderate to Severe Small MammalReptileBird

Respiratory Infections

Also known as: Upper Respiratory Infection, URI, Pneumonia

Respiratory infections in small mammals, reptiles, and birds encompass a range of bacterial, viral, and fungal pathogens affecting the upper and lower respiratory tract. In guinea pigs, Bordetella and Streptococcus are common. In reptiles, bacterial pneumonia is often secondary to husbandry issues. In birds, respiratory infections can rapidly become life-threatening.

Symptoms & Signs

Causes & Risk Factors

Bacteria (Pasteurella, Bordetella, Mycoplasma in small mammals; Pseudomonas, Aeromonas in reptiles), viruses (Sendai virus in rats), fungi (Aspergillus in birds). Predisposing factors: poor ventilation, dusty bedding, temperature extremes, overcrowding, stress, and immunosuppression.

Diagnosis

Physical examination and auscultation. Radiographs or CT for lower respiratory involvement. Culture and sensitivity of nasal/tracheal swabs. Blood work for systemic assessment. PCR for specific pathogens.

Treatment

Appropriate antibiotics based on culture (enrofloxacin, trimethoprim-sulfa, azithromycin). Nebulization therapy. Supportive care (fluids, nutrition, warmth). Environmental correction. Antifungals for mycotic infections.

Prevention

Proper ventilation and clean environment. Appropriate temperature and humidity. Dust-free bedding (paper-based for small mammals). Quarantine new animals. Avoid overcrowding. Reduce stress.

Prognosis

Good if caught early and treated appropriately. Chronic infections in guinea pigs (Bordetella) can be difficult to eliminate. Reptile pneumonia requires correction of husbandry for resolution. Bird respiratory infections can be rapidly fatal without treatment.

Affected Breeds (7)

BreedSpeciesSize
SiameseCatMedium
Campbell's Dwarf HamsterSmall MammalTiny
Chinese HamsterSmall MammalTiny
Dwarf Winter White HamsterSmall MammalTiny
Lionhead RabbitSmall MammalSmall
Roborovski HamsterSmall MammalTiny
Teddy Guinea PigSmall MammalSmall

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