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Micro-organisms and disease.

Emilia Bunsow, Isabel Orozco y Lhía Ginther.
by

Isabel Orozco Gutiérrez

on 22 May 2015

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Transcript of Micro-organisms and disease.

Diseases.
Illnesses caused by micro-organisms are called infections, or infectious diseases. An infection is when micro-organisms get into your body and cause a disease. A disease is when some part of a plant or animal is not working properly.
How can diseases spread.
• by droplet, e.g. tuberculosis bacteria and chickenpox virus.
• by animals, e.g. malaria and yellow fever by mosquitoes, and rabies by mammals;
• in food, e.g. salmonella bacteria from flies, dirty hands, or dirty knives and dishes;
• in contaminated water, e.g. typhoid bacteria.
Epidemics.
An epidemic is an outbreak of a disease affecting a large number of people in a population.
In 1854 there was an epidemic of a disease called cholera in London. Over 600 people died.
Epidemics spread really quick
This is how quickly the disease spread in the first 3 days of the epidemic in 1854:
How to control a disease.
You can either be ill or immune to the disease. These means your white blood cells have learnt how to make the antibodies. If a 2nd attack comes, your body can destroy the micro-organisms before they have time to make you ill, then, you have immunity.
But if you are already ill you have to control the disease in the right way. The method to control it varies on each disease, the better thing to do is consult your doctor so he/she can give you instructions on what to do and also give you some medicine.
How Human-to-human contact spread diseases.
Athlete's foot is a fungal disease spread by touch. Also a pregnant woman can pass on a disease to her unborn child. A baby can also catch a disease from her mother through breast milk.
Micro-organisms and disease.
Thank you!
Emilia Bunsow, Isabel Orozco, Lhía Ginther. 3A

Date in 1854
#of new cases of cholera
#of deaths of cholera
31st August
1st September
2nd September
56
143
116
3
70
127
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