At a Town Meeting with Public Health Officials to Discuss

At a town meeting with public health officials to discuss a communicable disease outbreak,a nurse is asked to explain what is meant by the phrase "a virulent organism." The nurse explains that this means the organism causing the disease is able to do which of the following?

A) Bypass normal immunological response mechanisms
B) Invade major organ systems
C) Produce toxins and poisons that weaken the body
D) Produce very severe physical reactions