CAIE IGCSE Biology 10.1.3 Pathogen is transmitted: (a) by direct
CAIE IGCSE Biology 10.1.3 Pathogen is transmitted: (a) by direct
Practise identifying direct and indirect pathogen transmission routes, including body fluids, blood, contaminated food, surfaces, air and animals.
How this is tested
- describe HIV transmission through infected body fluids, including blood, semen and shared needles
- state indirect transmission routes
- apply barriers