All the genetic material inside a virus or a cell

The protein coat surrounding a virus

The cycle where a virus genome penetrates a cell, takes control of cellular processes and replicates new virus genomes while destroying the cell.

The process where a virus genome

penetrates a cell, joining itself to the cell genome.

It reproduces only when the cell undergoes mitosis.

Human Immunodeficiency Virus—

A virus that attacks human immune systems

The cells, tissues and organs that protect the body from pathogens

A virus that attacks bacteria cells

The numerous cells that defend an organism from pathogens

White blood cells that help protect the body from pathogens and cancer

A series of antibodies (proteins) and white blood cells that chemically “remember” pathogens and stop them from infecting an organism a second time

Temporary immunity given to a baby from the mother’s immune system (naturally acquired) or from injections of antibodies into an older person (artificially acquired)

Long term immunity due to exposure to a disease (naturally acquired) or from injections of weak or dead versions of the disease (artificially acquired)

The injection of a weak or dead version of a disease

to produce immunity from the actual disease

An airborne or contact virus that causes the flu and attacks

the respiratory system. Over 3 million cases are recorded each year.

A virus that attacks skin.

It can go through a lysogenic phase and then the lytic cycle in times of stress.

It includes chicken pox and versions of STDs.

The cell invaded by the virus

A virus that contains RNA instead of DNA.

Most viruses are retroviruses. They can mutate very easily, making immunization difficult.