What is the Difference Between Tuberculosis and Paratuberculosis?

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Tuberculosis (TB) and paratuberculosis are two infectious diseases caused by bacterial species belonging to the genus Mycobacterium. The key differences between the two diseases are as follows:

  • Causative agents: TB is caused by Mycobacterium tuberculosis, while paratuberculosis is caused by Mycobacterium avium subsp. paratuberculosis (MAP).
  • Hosts: TB is a contagious respiratory infection in humans, while paratuberculosis is a contagious intestinal infection of ruminants, such as cattle and buffaloes.
  • Transmission: TB is acquired through aerosolization, affecting lung tissues, while paratuberculosis is acquired through the oral route and affects the intestine and lymphatic tissues.
  • Cellular level: Although infections with M. tuberculosis and M. paratuberculosis are very similar on the cellular level, their pathogenesis inside their respective hosts is completely different.

In summary, tuberculosis and paratuberculosis are two distinct infectious diseases caused by different Mycobacterium species, affecting different hosts and transmitted through different routes. While TB is a respiratory infection in humans, paratuberculosis is an intestinal infection in ruminants.

Comparative Table: Tuberculosis vs Paratuberculosis

Here is a table comparing the differences between tuberculosis and paratuberculosis:

Feature Tuberculosis Paratuberculosis
Causative Agent Mycobacterium tuberculosis Mycobacterium avium subspecies paratuberculosis (M. paratuberculosis)
Host Humans Ruminants (e.g., cattle, sheep, goats)
Transmission Aerosolization, inhalation of infectious droplets Oral route, ingestion of contaminated water, feed, or environmental sources
Disease Type Contagious respiratory infection Contagious intestinal infection
Target Organ Lungs, other tissues (brain, kidneys, bones) Intestine, lymphatic system
Symptoms Cough, fever, weight loss, fatigue, night sweats, chest pain Diarrhea, weight loss, anorexia, reduced milk production, swollen lymph nodes
Diagnosis Sputum smear microscopy, chest X-ray, PCR testing PCR testing, ELISA for antibodies, fecal culture
Treatment Antibiotics, isoniazid, rifampicin, pyrazinamide, ethambutol Antibiotic therapy, supportive care (e.g., fluid and electrolyte replacement), culling of infected animals
Prevention BCG vaccine, isoniazid preventive therapy Herd management, sanitation, testing and removal of infected animals, vaccination (in some countries)

Tuberculosis is a contagious respiratory infection in humans caused by Mycobacterium tuberculosis, while paratuberculosis is a contagious intestinal infection in ruminants caused by Mycobacterium avium subspecies paratuberculosis.