The immune system and COVID

COVID-19 (coronavirus) is caused by a pathogen. True or false?

• TRUE

• FALSE

One of your body's first defense against an incoming pathogen is/are

• white blood cells

• your skin

• red blood cells

• antibiotics

Viruses need to invade a cell in order to reproduce and make more of the virus. True or false?

• TRUE

• FALSE

COVID-19 is caused by

• bacteria.

• virus.

• a genetic mutation.

• exposure to toxic substances.

Which cells produce antibodies?

• B cells

• T cells

• Macrophages

• Mast cells

What is the difference between an antibody and an antigen?

• Antibodies cause disease and antigens fight against them

• Antigens trigger immune responses in the body, and antibodies protect the body with their specific antigen binding regions

• Antigens allow the body to remember past infections and antibodies cause infections

• Antibodies and antigens are both types of white blood cells

________ is a disease that can be passed to a person from another person, animal or object.

• Non-communicable disase

• Communicable Disease

• Pathogens

________ are disease-causing organisms that are so small you need a microscope to see them. Think "fancy word for germs".

• Virus

• Disease

• Communicable

• Pathogen

Washing your hands is the _________ effective strategy for preventing the spread of disease?

• least
• most

If you are showing symptoms of a communicable disease you should still go to school.

• True

• False