Causes of disease (B1)

Infectious micro organisms - flu, measles, cold

A body error - Alzheimers, diabetes, cancer

A dietary defficiency - Scurvy, rickets, anaemia

A faulty gene - haemophilia, cystic fibrosis

Pathogen Examples

Bacteria Cholera, TB

Viruses Flu, colds, measles

Fungi Athletes Foot

Protozoa Malaria, dysentry

Pathogen - any micro organism that causes disease

Parasites attack blood cells

Vector - An organism that spreads a disease…