200
Fruit juice is good for your ______.
The dead or inactive ________ material used in vaccination.
The _________ was caused by rotten food.
On holiday he caught a _____.
If you are ______ to a disease, your body destroys the micro-organism before it has time to make you feel ill.
A jab is an injection of a _______ that makes you immune to a disease, such as measles.
________ is the body's ability to resist certain harmful disease producing bacteria and viruses.
We use ________ to make yoghurt and cheese, but ________ can also cause diseases such cholera and food poisoning.
Influenza, AIDS and measles are diseases caused by _______.
___________ are made by living things and they kill bacteria.