1. How does tuberculosis progress from latent to active?

A. The infection droplets (bacilli) escape encapsulation and begin producing symptoms. 

B. The purified protein derivative (PPD) test turns positive. 

C. It becomes active when an infected person coughs or sneezes. 

D. The patient’s sputum turns bloody. 

 

 

2. Most cases of pharyngitis are caused by GroupA ß-hemolytic streptococci.

True

False