Unit 2: Communicable Diseases

Influenza, aka Flu, is a virus.  This represents the Chain of Infection at what link?

• Infectious Agent
• Reservoir
• Susceptible Host
• Mode of Transmission

We contract most colds through the nose or mouth when someone coughs, sneezes, or we come in direct contact with contaminated fluids.  In relation to the chain of infection, what link is this?

• Reservoir
• Mode of Transmission
• Portal of Entry
• Portal of Exit

For colds & the flu, we contract the illness through droplets from coughing, sneezing or laughing, either directly from one person to another or indirectly from touching contaminated surfaces. In relation to the chain of infection what link is this?

• Portal of Entry
• Portal of Exit
• Mode of Transmission
• Susceptible Host

For cold & flu it's the nose, mouth, or eyes.  This is related to the chain of infection at what link?

• Portal of Exit
• Portal of Entry
• Mode of Transmission
• Suseptible host

Simple one-celled organism that multiplies rapidly:

• Virus
• Rickettsiae
• Bacteria
• Fungi

Simple plant-like organism, lives typically on dead matter, includes molds.

• Bacteria
• Fungi
• Virus
• Protozoa

The name for anything that causes disease is known as:

• Bacteria
• Pathogen
• Virus
• Protozoa

What pathogen causes the common cold?

• Virus
• Bacteria
• Fungi
• Protista

There is a vaccine to prevent the common cold.

• True
• False

The blood cells that fight pathogens.

• White blood cells
• Red blood cells
• Plasma
• Hemoglobin