From Binet's work the IQ scale called the Binet Scale, (and later the Simon-Binet Scale) was developed. Sometime later, intelligence quotient, or IQ, entered our vocabulary.
Tuberculosis (TB) is an infectious disease that usually attacks the lungs, but can attack almost any part of the body. Tuberculosis is spread from person to person through the air. When a person with TB in their lungs or throat coughs, laughs, sneezes, sings, or even talks, the germs that cause TB may spread through the air.
M. tuberculosis in their bodies, but do not have TB disease and cannot spread the infection to other people. A person with LTBI is not regarded as a case of TB disease. The process of LTBI begins when extracellular bacilli are ingested by macrophages and presented to other white blood cells.. tuberculosis organisms are also called tubercle bacilli. Figure 2.1 Mycobacterium tuberculosis Transmission of TB M. tuberculosis is carried in airborne particles, called droplet nuclei, of 1â 5 microns in diameter.