Chapter 10
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How does TB spread?

Transmission occurs through the airborne spread of infectious droplets. When an infectious person coughs, sneezes or spits, they propel TB bacteria into the air. Left untreated, a person with active TB can infect an average of 10 –15 people each year. People living with HIV are at a much greater risk of developing active TB once infected, which increases as the degree of immune suppression increases.