COMMUNICABLE

• pathogen- micro organism that causes disease
• protist- single celled eukaryotic
• bacteria- small living cell, reproduces rapidly
• virus- not cells, reproduce rapidly, live inside cells, duplicate, and burst
• fungi- single celled
• HIV (virus): spread by sexual contact and exchange of bodily fluids, attacks the immune system leading to aids
• gohorrhoea (bacteria): spread sexually, treated by penicillin, prevention by using barrier contraception methods
• malaria (protist): spread by mosquitos, stopped by killing the breeding sites of mosquitos, sleeping in nets, using repelant