A ______ contains a weakened or killed form of a virus to protect against future infections.

This is the first stage of a viral infection. Proteins on the cell surface connect to the cell surface.

Third stage of viral infection. Viral parts are made.

The outer layer of a virus that has proteins that act like keys.

Part of the virus that holds the DNA or RNA.

Type of white blood cell that consumes other cells.

Part of the immune system that attaches to a virus and flags them for destruction.

Type of cell that produces antibodies.

Type of virus that causes cold sores.

The virus that caused the death of 20-40 million people in 1918-1919.

The type of virus that causes the common cold.

The type of virus that causes AIDS.

Dangerous virus that occurs in parts of Africa and has a 50% fatality rate.

The virus that causes warts and can result in cervical cancer.

This virus causes a spotty rash, but you can be vaccinated against it.

Structure 1:

Structure 2:

Structure 3:

Structure 4:

Any bacteria, virus, or microorganism that can make you sick.

Single cell prokaryotes; some can make you sick.

The first defense against harmful bacteria. It's also the largest organ of the body.

Medium used to grow bacteria.

If bacteria have enough nutrients, they can divide and form this large group.

This traps bacteria and makes snot.

Disease transmitted through a tick bite.

The first antibiotic.

A type of bacteria that is resistant to most antibiotics.

Theory that explains how bacteria become resistant to antibiotics.

Disease caused by flea bites that killed thousands of people in the 1300s.

Step 1 of antibiotic resistance:

Step 2 of antibiotic resistance:

Step 3 of antibiotic resistance:

Step 4 of antibiotic resistance: