He rauropi tuku tahumaero, ko te nuinga he moroiti, he pirinoa. He huakita ētahi tukumate pērā i te salmonella, he huaketo ētahi pērā i te rewharewha, he hekaheka ētahi pērā i te muna.
An organism that causes disease. Most are micro-organisms and parasitic. Some are bacterial such as salmonella, some are viral such as influenza, some are fungal such as ringworm.