Chapter 18 / 5 short lessons
Infection, vaccination and disease spread
Link pathogen biology to disease, selective treatments and transmission models.
H2 Biology / 9477 / 2027 syllabus
What do you think?
Does R0 = 3 mean exactly three new infections per person every day?
Lessons
0 of 5 marked as readHow viruses disrupt host function
Explain influenza epithelial damage and HIV helper T-cell impairment.
About 7 minTuberculosis: transmission and infection
Explain airborne transmission and infection by Mycobacterium tuberculosis.
About 7 minAntibiotics target bacterial processes
Explain antibiotic modes of action, including inhibition of wall synthesis.
About 6 minVaccination and interrupted transmission
Explain vaccination, smallpox eradication and benefits/risks.
About 7 minR0, outbreaks, epidemics and pandemics
Explain basic reproduction number and scales of disease spread.
About 7 minWhat you will be able to do
- Explain viral and bacterial host effects.
- Connect antibiotic targets and vaccine protection to mechanisms.
- Interpret R0 and outbreak evidence with assumptions.