Hmmmmmmmmmm. Tuberculosis is NOT a virus.
You are so correct.
From the CDC web site:
What is TB?
Tuberculosis (TB) is a disease caused by bacteria called Mycobacterium tuberculosis. The bacteria usually attack the lungs. But, TB bacteria can attack any part of the body such as the kidney, spine, and brain. If not treated properly, TB disease can be fatal. TB disease was once the leading cause of death in the United States.
TB is spread through the air from one person to another. The bacteria are put into the air when a person with active TB disease of the lungs or throat coughs or sneezes. People nearby may breathe in these bacteria and become infected.
But, but, "Pravda" means "truth"...
I guess that's another to file alongside "Islam" means "peace"...
Perhaps a translation issue?
Influenza isn't caused by an insect, but I wouldn't be all that surprised if 'flu bug' translated into Russian made it sound like we thought it was.