“The finding upends conventional wisdom regarding coughing, long thought to be the main route of transmission.”
“As much as 90 percent of TB bacteria released from an infected person may be carried in tiny droplets, called aerosols, that are expelled when a person exhales deeply…”
“Researchers previously believed that most TB transmission occurred when an infected person coughed, spraying droplets containing the bacteria into the air. Some bacteria were thought to be released when a person breathed, but much less than by coughing.
“The new finding does not change that understanding: A single cough can expel more bacteria than a single breath. But if an infected person breathes 22,000 times per day while coughing up to 500 times, then coughing accounts for as little as 7 percent of the total bacteria emitted by an infected patient…”
“Tuberculosis is caused by a bacterium called Mycobacterium tuberculosis, which usually attacks the lungs. It is the world’s deadliest infectious disease after Covid-19, claiming more than 1.5 million lives last year — the first increase in a decade, according to a report published last week by the World Health Organization.”
“The report echoes an important finding of the Covid pandemic: The coronavirus, too, spreads in aerosols carried aloft, particularly in indoor spaces…”
(https://www.nytimes.com/2021/10/19/health/tuberculosis-transmission-aerosols.html)
(https://commons.m.wikimedia.org/wiki/File:Mycobacterium_tuberculosis_8438_lores.jpg)
danelabonte 
