Infectious Diseases Bacteria and Viruses

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 Blank

Name the two micro-organisms that cause disease

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 Blank

Sharing personal item such as towel is a way infectious disease can be spread through ...................

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 Blank

Infectious diseases can be spread through animals by houseflies, cockroaches and rats which carry .............................

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 Blank

What is the name of mosquito that causes dengue fever?

Fill in the Blank

What is the disease brought by Anopheles mosquito?