Hamster influenza often develops when the immune system is weakened. Stress, overcrowding, dirty cages or sudden temperature changes make hamsters more vulnerable. The illness is usually triggered by bacteria like Pasteurella or Bordetella or by viruses that inflame the respiratory system. Dusty bedding and poor ventilation also worsen the risk.
The first sign of hamster flu. Sneezing may start suddenly and continue throughout the day.
Flu can spread to the eyes, causing watery discharge or sticky crusts.
Because the hamster cannot smell food properly, it may eat less or stop eating altogether.
A very serious symptom showing severe respiratory distress. The hamster needs immediate veterinary care.
Clear watery discharge at first, but can turn yellow or green with bacterial infection. Crust often forms around the nostrils.
Hamsters may produce wheezing, clicking or rattling sounds when breathing. This is a sign of airway inflammation.
Sick hamsters often curl up in a corner or nest and avoid movement.
Hamster influenza is a respiratory illness that affects the nose, throat, and sometimes the lungs, causing sneezing, discharge and difficulty breathing.
Yes, it can spread quickly between hamsters in the same cage, especially if they share food or bedding.
Frequent sneezing and watery eyes may be mild, but if your hamster has noisy breathing, refuses food or breathes with its mouth open, it’s more serious.
Treatment may include antibiotics, supportive care and a clean environment. Severe cases may require hospitalization and oxygen therapy.
Yes, if untreated. Flu can turn into pneumonia, which is life-threatening. Early care gives the best chance of recovery.
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