Blood cell infected with malaria parasite

Malaria is caused by the single-celled parasite Plasmodium. It is transmitted from one person to another by certain species of blood sucking mosquito. The parasite spends part of its complex life cycle inside red blood cells.

More about microbes


Microbes often suffer from negative press but guess what, only 5% actually cause disease and many more are very helpful.

These fascinating microscopic organisms are necessary for us to survive. This interactive section allows you to explore further the secret world of microbes, see how STI aware you are and collect a whole load of fascinating facts about microbes to impress your friends with. There are also some handy revision tips.

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