Many communicable disease begin as infections of the

Which is NOT a way that a disease can spread through direct contact?

What cells coordinate and perform many of the functions of specific immunity?

What is a global outbreak of an infectious disease called?

This is an infection of the lungs in which air sacs fill with pus and other liquids.

This is a single-celled organism that live almost everywhere on earth

a microorganism that causes recreational water illness

a piece of genetic material surrounded by a protein coat

a protein that acts against a specific antigen

Touching, bitting, and kissing are all forms of indirect contact.

Diseases spread by vectors include malaria and West Nile virus

Washing your mouth regularly is the single most effective way to protect yourself from catching or spreading disease.

If a person has a fever, a sore throat, and enlarged lymph nodes in the neck, that a person proably has tuberculosis.

A person with hepatitis B may develop cirrhosis, whichh is scarring of the liver.

A chemical that fights a pathogen tryign to enter the boy is part of the digestive system.

During the inflammatory response, fluid and cells from the bloodstream cause swelling.

A preperation made of weakened pathogens is a killed-virus vaccine

Some emerging infections have increased in occurence within the past two decades.

Drug-resistant pathogens contribute to the spread of emerging infections.