immigration

The rate hit an all-time low of 1.73, which is well below the replacement rate of 2.1 births per woman. Despite this, the nation is projected to add roughly 65 million to the total population over the next 30 to 40 years, representing an increase of about 19 percent.
The ratio of tuberculosis cases comparing immigrants to native-born Americans is more than 2:1. Standardizing these numbers paints an even starker picture. The incidence of tuberculosis is almost 15 per 100,000 immigrants, while it is only 1 per 100,000 native-born Americans. The good news is that tuberculosis is curable, and the disease is in decline all over the world.