Each one of these droplets may transmit the disease, since the infectious dose of tuberculosis is very small (the inhalation of fewer than 10 bacteria may cause an infection).
== Mehanizem ===== Prenos ===Kadar ljudje z aktivno pljučno tuberkulozo kašljajo, kihajo, govorijo, pojejo, ali pljuvajo, oddajajo nalezljive aerosolne kapljice s premerom 0,5–5,0 μm.