Guinea Pig Respiratory Disease Welfare

Respiratory infections are among the most common and serious health problems in guinea pigs, often caused by bacterial pathogens.

Key Facts

Bordetella bronchiseptica and Streptococcus pneumoniae are the main bacterial causes
Guinea pigs are particularly susceptible to Bordetella carried asymptomatically by rabbits
Symptoms include laboured breathing, nasal discharge, lethargy and loss of appetite
Upper respiratory infections can rapidly progress to fatal pneumonia in guinea pigs
Stress, poor ventilation and vitamin C deficiency increase susceptibility
Vitamin C must be provided daily as guinea pigs cannot synthesise it - deficiency impairs immunity
Keeping guinea pigs away from rabbits prevents Bordetella transmission

Welfare Considerations

Respiratory disease in guinea pigs progresses rapidly and causes significant distress. Many cases deteriorate before owners recognise severity, as guinea pigs are prey animals that mask illness. Vitamin C deficiency - extremely common in pet guinea pigs - impairs immune function and directly increases respiratory disease risk, making this a preventable welfare problem.

What You Can Do

Provide fresh vitamin C daily via bell peppers, leafy greens or a veterinary supplement
House guinea pigs away from rabbits to prevent Bordetella transmission
Ensure good ventilation in housing without draughts, keeping bedding clean and dry
Seek vet attention promptly at first signs of breathing difficulty or nasal discharge