Microbiology Health and Diseases

Theme 4: Personal Health and The Environment

​Topic: Infectious Diseases (Part 1)

by Tcr Syll

​Step to Success (S2S)​

• ​Read through the slides and answer the Bonus questions to get your marks.

What are infectious diseases?

• Disease​s that can be spread from one person to another person.

What are the two microorganisms that can cause diseases ?

bacteria

​virus

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​          QUIZ

Open Ended

What is an infectious disease?

Fill in the Blanks

A) Infectious diseases can be spread through air.

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​(HOW?) It can be spread ...

a) when someone has a cold sneezes or cough

​ without covering mouth, and

​b) spits everywhere.

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​Examples of diseases:

​common cold, influenza, tuberculosis and Covid19

How infectious diseases can be spread and how?

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B) Infectious diseases can be spread through

physical contact.

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(HOW?) It can be spread ...

a) sharing personal items such as handkerchiefs, brushes, towels, food and drinks.

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Examples of diseases:

​common cold, influenza, red eye and some skin diseases.

How infectious diseases can be spread and how?

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​          QUIZ

Multiple Choice

When someone spits everywhere, it may cause the spread of diseases through .......

• water

• air

• food

• physical contact

Fill in the Blanks

Multiple Choice

Name one example of disease spread through air and one example of disease spread through physical contact.

• Air - common cold

  Physical contact - diarrhoea

• Air - red eye

  Physical contact - cholera

• Air - tuberculosis

  Physical contact - red eye

• Air - tuberculosis

  Physical contact - food poisoning

C) Infectious diseases can be spread through

food and water.

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(HOW?) It can be spread ...

a) by germs found in dirty food and water, rotten or uncooked food.

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Examples of diseases:

​food poisoning, diarrhoea and cholera

How infectious diseases can be spread and how?

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D) Infectious diseases can be spread through

animals.

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(HOW?) It can be spread ...

a) by animals such as houseflies, cockroaches and rats which carry germs,

b) by Anopheles and Aedes mosquito

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Examples of diseases:

​food poisoning, cholera, typhoid, malaria and dengue

How infectious diseases can be spread and how?

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​          QUIZ

Multiple Select

When someone buying food from dirty hawker, it may cause the spread of diseases through .......

• food and water

• air

• animals

• physical contact

Fill in the Blanks

Multiple Choice

Name two examples of disease spread through food and water.

•  common cold and influenza

• malaria and typhoid

• red eye and food poisoning

• food poisoning and cholera

​Rats bring a disease called plague

​Houseflies bring a disease called cholera

​Aedes mosquito brings a disease called dengue

​Anopheles mosquito brings a disease called malaria

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​          QUIZ

Fill in the Blanks

Fill in the Blanks