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New
Lesson 6 of 6
  • Year 9

Human immunodeficiency virus (HIV)

I can explain what HIV is, how it is transmitted, its transmission rates, and how it affects the immune system.

Lesson 6 of 6
New
New
  • Year 9

Human immunodeficiency virus (HIV)

I can explain what HIV is, how it is transmitted, its transmission rates, and how it affects the immune system.

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Lesson details

Key learning points

  1. HIV is a virus that attacks the immune system, specifically targeting CD4 cells.
  2. HIV is transmitted through bodily fluids such as blood, semen, vaginal fluids and breast milk.
  3. Transmission rates can vary based on factors such as type of exposure and presence of other STIs.
  4. HIV can lead to AIDS if left untreated, severely weakening the immune system.
  5. There are effective prevention methods and treatments available, including antiretroviral therapy (ART).

Keywords

  • HIV - short for human immunodeficiency virus; a virus that attacks the immune system

  • CD4 cell - a type of white blood cell that is targeted and destroyed by HIV

  • AIDS - short for acquired immunodeficiency syndrome; the most advanced stage of HIV infection

  • Transmission - passing an infection from one person to another

  • ART - short for antiretroviral therapy; a treatment for HIV that helps manage the virus

Common misconception

Only certain groups of people can get HIV.

HIV can affect anyone regardless of age, gender, sexual orientation or socio-economic status.


To help you plan your year 9 RSHE (PSHE) lesson on: Human immunodeficiency virus (HIV), download all teaching resources for free and adapt to suit your pupils' needs...

You might want to check with your RSHE lead or policy before delivering this lesson. Be prepared to address questions sensitively and direct pupils to appropriate support services if needed.
Teacher tip

Equipment

Content guidance

  • Depiction or discussion of sensitive content
  • Depiction or discussion of violence or suffering
  • Depiction or discussion of sexual content

Supervision

Adult supervision required

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Prior knowledge starter quiz

Download quiz pdf

6 Questions

Q1.
What is the main function of the immune system?

to produce red blood cells
Correct answer: to protect the body from infections
to transport oxygen throughout the body

Q2.
Match the word with the correct definition.

Correct Answer:infection,the invasion and multiplication of microorganisms in the body

the invasion and multiplication of microorganisms in the body

Correct Answer:bacteria,single cells that can live on their own; some help, others harm

single cells that can live on their own; some help, others harm

Correct Answer:viruses,particles that need a host cell to reproduce, often causing disease

particles that need a host cell to reproduce, often causing disease

Q3.
How do infections spread?

by breathing in clean air
through eating healthy food
Correct answer: through contact with infected individuals or surfaces

Q4.
Which colour blood cells help protect your body from infections?

Correct Answer: white

Q5.
Which of the following is an example of a barrier method of contraception?

Correct answer: condoms
hormonal implants
the pill

Q6.
What are the basic components of the immune system?

nervous system, muscles and bones
red blood cells, platelets, and plasma
Correct answer: white blood cells, antibodies and the lymphatic system

Assessment exit quiz

Download quiz pdf

6 Questions

Q1.
HIV can affect regardless of age, gender, sexual orientation or socio-economic status.

Correct Answer: anyone, everybody, any one

Q2.
Match the word to the correct definition.

Correct Answer:HIV,a virus that attacks the immune system

a virus that attacks the immune system

Correct Answer:AIDS,the most advanced stage of HIV infection

the most advanced stage of HIV infection

Correct Answer:transmission,the act of passing a disease from one person to another

the act of passing a disease from one person to another

Correct Answer:ART,treatment for HIV that helps manage the virus

treatment for HIV that helps manage the virus

Q3.
What type of cells does HIV destroy?

Correct Answer: CD4 cells, CD4, CD4 cell

Q4.
How is HIV mainly transmitted?

through casual contact
Correct answer: through specific body fluids
through the air

Q5.
What can HIV lead to if left untreated?

diabetes
Correct answer: AIDS
heart disease
asthma

Q6.
What can help reduce the transmission rates of HIV from mother-to-child?

avoiding casual contact
eating healthy food
Correct answer: proper medical care