Chapter 23 Infectious Diseases and how to Prevent them Solutions

Maharashtra State Board Class 5 EVS Solutions Part 1 Chapter 23 Infectious Diseases and how to Prevent them

5th Std EVS 1 Digest Chapter 23 Infectious Diseases and how to Prevent them Textbook Questions and Answers

1. What’s the solution?

2. Use your brain power!

3. Answer the following in one or two sentences:

Question (a)
What is an infectious disease?
Answer:
When diseases spread from one person to another person, they are called infectious diseases.

Question (b)
What are the mediums of the spread of diseases?
Answer:
Diseases spread through mediums like food, water, air and insect bite. Sometimes it also spreads by coming in direct contact with a diseased person.

Question (c)
What happens when there is an epidemic of disease?
Answer:
When many people in one area get the same infectious disease at the same time, we say there is an epidemic of the disease. During an epidemic air and water gets contaminated with the disease germs and the disease spreads rapidly. Contaminated water also contaminates the food. If the epidemic is severe many people become serious and need to be hospitalised. To control the epidemic one needs to maintain hygiene and a clean surrounding.

Question (d)
What is vaccination?
Answer:
When a person is given a vaccine against a specific disease, he develops resistance to that disease. This process of giving vaccine is called vaccination. Whooping cough diphtheria and tetanus called triple vaccine is given.

Question (e)
Make a list of the vaccination given to a new bom baby.
Answer:
The table given below shows the list of vaccinations given to the new bom baby along with the schedule of when the vaccination is given:

Triple vaccine is repeated twice again after 10 weeks and 14 weeks after the baby is bom. Hep. B vaccine is also repeated twice after 4 weeks and 8 weeks after birth. After completing a year the baby is given vaccine against measles, mumps and rubella. It is called MMR vaccine.

4. True or False:

Question (a)
Intestinal diseases spread though air.
Answer:
False

Question (b)
Some diseases are caused by the anger of gods
Answer:
False

5. Classify the diseases given below as diseases that spread through food, through water, and through air:

6. Give reasons.

Question (a)
When there is an epidemic of cholera, we should boil water before drinking.
Answer:
Sometimes water gets mixed with faeces of person who is suffering from the cholera and it gets contaminated. When people drink this contaminated water an epidemic of cholera spreads.
Boiling the water kills the germs causing the disease and hence one is prevented from getting cholera.
Therefore during an epidemic of cholera one should boil water and drink.

Question (b)
We should not allow puddles of water to stand in our surroundings.
Answer:
When water stagnates in a puddle, mosquitoes lay eggs in the water and they increase in number. Mosquito bite spread malaria germs and people suffer from malaria. To prevent people from getting malaria mosquitoes should be stopped from breeding. To prevent mosquitoes from breeding we should not allow puddle of water to stand in our surrounding.

Environmental Studies Part 1 Standard 5th Solutions Chapter 23 Infectious Diseases and how to Prevent them Additional Important Questions and Answers

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