Essay Causes and Spread of Infection

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Understanding the causes of infection

1.1 Identify the differences between bacteria, viruses, fungi and parasites.
Bacterial and fungi infections are easy to cure with the use of antibiotics, where as viruses can be hard to cure or vaccinate against, such as the common cold. Bacteria can be found everywhere and anywhere Soil, Water, Plants, Animals, material and even deep in the earth's crust. Bacteria feed themselves by making there food with the use of sunlight and water. We would not be able to live without Bacteria. The human body consists of lots of friendly bacteria which also protect us from dangerous ones by occupying places in the body. Some of the most deadly diseases and devastating epidemics in human history have …show more content…
They need moisture and air to multiply but some can without. A single micro organism can become two in around 20 minutes, this varies on the type of different micro organism.

2.2-Explain the ways an affective agent might enter the body

Most people get infections of some sort or another. Infections can enter your body several ways for example breaks in the skin. If you have a cut or breakage on your skin it provides a route for infection to enter although bites scratches, needles stick injuries increase the risk of infection. Another way for infection to enter the body is into your mouth or nose where food, drink or other infected products can be swallowed and infect the stomach or bowels. Most people have had diarrhoea and or vomiting which can be a sign of eating something bad. Or even food poisoning which is the infection of bacteria in undercooked food. Also infection can be transmitted up your Up the urinary and reproductive system, from small yeast infections to sexually transmitted diseases.

2.3- Identify common sources of infection:
2.4- Explain how infective agents can be transmitted to a person:

Humans can catch infection from several different ways these can be air bourn, blood Bourne, sexually transmitted, direct contact,
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