Two of the major route of infection of tuberculus organism are intestine through ingestion of contaminated food and water and respiratory through inhalation of contaminated air and droplet infection. The organisms are continuously discharged through excreta, respiratory discharges, milk, urine and uterine discharges.
Clinical Forms of Cat Tuberculosis
Respiratory form is characterized by dyspnea (Difficult breathing), respiratory distress and chronic low moist cough. In alimentary form, dysphagia (Difficult in swallowing), progressive emaciation, and occasional diarrhea are seen; Signs involving other systems are uncommon in house cats.
- Diagnosis is essentially based on postmortem lesions and histopathology together with demonstration of acid-fast organisms in tissue sections and impression smears when stained with Ziehl-Neelson’s technique.
- Isolation of organisms
Biological test by animal inoculation
- ELISA and PCR where ever facilities are available.
Specimens appropriate for laboratory diagnosis
- Tuberculosis lesion from lungs, lymph-nodes, intestine and other organs for isolation and histopathology
- Sputum in respiratory form of disease