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Mode of TB Transmission
Learning ObjectivesExplain the droplet - airborne mode of transmission of TB.
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Tuberculosis is transmitted mainly through the air via droplet nuclei generated when a TB patient coughs or sneezes.
It is estimated that every sputum smear-positive patient spreads the infection to 10 – 15 persons annually, if untreated..
Figure: Transmission of TB bacteria through air via droplet
Resources:
- Technical and Operational Guidelines for TB Control in India 2016
- WHO - Fact sheet details on Tuberculosis
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