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Introduction

Picture 1. Coughs and sneezes spread diseases. But how can we prevent them?

Infectious diseases are caused by micro-organisms that enter and reproduce in the body. This causes damage to the body tissues and causes the symptoms of the disease. Modern medicine has devised many treatments to help cure infectious diseases.

Contents
	There are 10 sections in this electronic resource (e-source): Introduction Pathogens cause disease Immunity A bacterial disease - Meningitis A fungal disease - Candidiasis A viral disease - SARS A protozoic disease - Malaria Modern medicines of the world Appendix of diseases Quiz

Using this e-source

There are a number of interactive features in this e-source:

A glossary of terms: any word with a glossary entry is highlighted like that. Clicking on the word will open a new window with a definition of that word.

Quick questions: at the end of e-source, there is a set of quick questions to test your understanding of the scientific ideas.

Roll over diagrams: many of the diagrams have highlights or sequences. You can see these by rolling your cursor over part of the picture or part of the text. The text has a roll over highlight like that.

Last updated March 2004.