[valarauko]

Yes, and it's a self-perpetuating cycle. If so few people have latent TB, fewer people develop active TB that will go on to infect others. As other comments have mentioned, poverty and its resultant poor health is the biggest correlation for developing active TB. I wonder if most of the Russian latent infections happened during the Soviet/Post Soviet collapse era, with newer latent infections falling off as quality of life improved over time?

[skirge]

quality of life improving in Russia is a very risky statement. Soviets manipulated statistics and so does current Russian government.