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Mycobacterium bovis infection in children in the same family: transmission through inhalation

A A Velayati1, P Farnia, M R Boloorsaze

  • 1Dept. of Pediatric, National Research Institute of Tuberculosis and Lung Disease, WHO Collaborating Centre for Tuberculosis & Lung Diseases, Shaheed Beheshti University of Medical Sciences and Health Services, Darabad, Tehran 19556, P.O. 19575/154, Iran.

Monaldi Archives for Chest Disease = Archivio Monaldi Per Le Malattie Del Torace
|November 22, 2007
PubMed

Insights

Mycobacterium bovis (M. bovis) infected two children from the same family. The study suggests airborne transmission, not just contaminated milk, is a possible route for M. bovis infection in children.

Area of Science:

  • Pediatric infectious diseases
  • Mycobacterial infections
  • Public health microbiology

Background:

  • Mycobacterium bovis (M. bovis) is a zoonotic pathogen primarily associated with cattle.
  • Bovine tuberculosis, caused by M. bovis, can be transmitted to humans through various routes.
  • Understanding transmission dynamics is crucial for controlling M. bovis in both animal and human populations.

Observation:

  • Two pediatric cases of M. bovis infection within the same family were identified.
  • Molecular typing confirmed a single, identical source of infection for both children.
  • Clinical presentations and epidemiological data were analyzed to determine the transmission route.

Findings:

  • While ingestion of contaminated dairy products is a known transmission route, this case highlights alternative pathways.
  • Evidence suggests that airborne transmission of M. bovis is a plausible route, particularly in a household setting.
  • The identical source points to a common exposure event for both infected children.

Implications:

  • This finding broadens the understanding of M. bovis transmission, emphasizing the role of aerosols.
  • It underscores the importance of considering airborne M. bovis transmission in pediatric populations, especially in family clusters.
  • Public health strategies for M. bovis control may need to incorporate measures addressing airborne transmission in addition to foodborne routes.

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