K224 / K225 / 2027

Chapter 7 / 5 short lessons

Infectious diseases in humans

Separate cause, symptoms and transmission, then explain how vaccines and antibiotics work differently.

G2 Combined Biology / K224 / K225 / 2027 syllabus

What do you think?

Influenza is caused by a virus. Will an antibiotic remove its cause?

Lessons

0 of 5 marked as read
01

Pathogen, disease and route

Distinguish infectious from non-infectious disease and identify routes of pathogen transmission.

About 5 min
About 5 min
02

Influenza and pneumococcal disease

Identify the causes and typical signs or symptoms of influenza and pneumococcal disease.

About 5 min
About 5 min
03

Breaking the transmission chain

Explain how influenza and pneumococcus spread and how transmission can be reduced.

About 5 min
About 5 min
04

Vaccination and immune memory

Explain how vaccination prepares white blood cells for a later encounter with a pathogen.

About 5 min
About 5 min
05

Antibiotics and resistance

State that antibiotics act against bacteria, not viruses, and explain how misuse and overuse favour resistance.

About 6 min
About 6 min
What you will be able to do
  • Distinguish infectious and non-infectious conditions.
  • Explain influenza and pneumococcal transmission and prevention.
  • Explain vaccination and why antibiotic overuse favours resistance.

Ready to try it without your notes?

Start with a quick check or explain a biological result in your own words.

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