Oral white patches that are of unknown cause, cannot be rubbed off, and cannot be clinically diagnosed as any other condition should be:

The time period when an infected person cannot transmit a disease to another individual is known as the:

A) Incubation period B) Latent period C) Window phase D) Communicable period

An estimated ________ of tobacco-related deaths are the result of secondhand smoke exposure

A) 22,000 B) 30,000 C) 41,000 D) 49,000