Starter : If you exercise regularly:
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Transcript of Starter : If you exercise regularly:
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Starter :If you exercise regularly: You have a higher _ _ _ _ _ _ _ _ _ _ _
ratio, therefore you have a higher _ _ _ _ _ _ _ _ _ _ _ _ _. You have a lower _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ level which means you have less chance of getting _ _ _ _ _ _ _ _ _ _ _.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Infectious Diseases
Some infectious diseases are mild. e.g. Common cold Tonsillitis
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
![Page 3: Starter : If you exercise regularly:](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816459550346895dd62821/html5/thumbnails/3.jpg)
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
![Page 4: Starter : If you exercise regularly:](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816459550346895dd62821/html5/thumbnails/4.jpg)
Infectious Diseases
Some infectious diseases kill. e.g. Influenza (Flu) HIV (AIDS)
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
![Page 5: Starter : If you exercise regularly:](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816459550346895dd62821/html5/thumbnails/5.jpg)
Microorganism Infectious diseases are caused by
microorganisms entering the body. Microorganisms that cause diseases are called pathogens.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Infectious A person is said to be infectious if
they can pass the microorganisms to another person.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Types of Pathogen There are two groups of
microorganisms that are pathogens. Bacteria Viruses
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
![Page 8: Starter : If you exercise regularly:](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816459550346895dd62821/html5/thumbnails/8.jpg)
Differences Between Bacteria and Viruses
Bacteria are single celled living organisms. Some are useful, like the ones used to make cheese, treat seweage or make medicine.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
![Page 9: Starter : If you exercise regularly:](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816459550346895dd62821/html5/thumbnails/9.jpg)
Differences Between Bacteria and Viruses
Viruses are smaller than bacteria and have regular shapes. Viruses cause disease in all living organisms, even in bacteria.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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The Cause of Disease When bacteria enter the body they reproduce rapidly by dividing into two. They often produce toxins. Some directly damage cells.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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The Cause of Disease When viruses enter the body they enter the cells. They reproduce, destroying
the cell before they move onto another.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Task 1: Answer the questions in full
sentences.
1. What is a pathogen? 2. What is an infectious person? 3. Make a table to explain the
differences between bacteria and viruses.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz Semmelweis
In the 1850’s many women mysteriously diedafter giving birth.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz Semmelweis
The disease wascalled childbed fever. Many people believed that thosethat died were being punished for having a baby outside of marriage.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz SemmelweisHe noticed that his medical students went straight from a dissection to delivering a baby, without washing their hands.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz SemmelweisHe insisted that all doctors at his hospital should wash their hands before delivering a baby. Much fewer women died from childbed fever.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz SemmelweisSemmelweis made it his mission to educate other doctors about his findings. But he had trouble convincing doctors that there was an invisible infectious agent that doctors were carrying on their hands.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Ignaz SemmelweisHis battle still continues today.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Task 2You are Dr. Ignaz Semmelweis in 1857. Write a letter to Dr. R Bledstrom, head
of medicine in Austria. Explain your theory about childbed fever and your struggle to convince doctors to take
appropriate action.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?
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Peer Marking PointsChildbed fever is caused by doctors carrying
an infectious agent on their hands. If doctors wash their hands prior to delivery,
less women die.Other doctors are unwilling to believe that
something they cannot see could cause disease.
Other doctors are also unwilling to acknowledge that they might be responsible.
1.What are pathogens?
Pathogens and Disease
3. How did Ignaz
Semmelweis change the
way we look at disease?
2. How do pathogens
cause disease?