Pathogen groups, structural distinctions and the syllabus disease examples

What this note covers

1. Infectious disease requires invasion by a transmissible pathogen
2. Bacteria are cellular prokaryotes with diverse disease mechanisms
3. Fungi are eukaryotes with absorptive growth
4. Protists include malaria parasites and Phytophthora dieback
5. Viruses are acellular and depend on host cells
6. Classification guides tests and controls but does not replace evidence

6 sections · 10 key terms & formulas · 6 common mistakes