3.1 Communicable diseases

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Question 10

Malaria is a serious tropical disease spread by female Anopheles mosquitoes.

What type of pathogen causes malaria?

A bacterium
A fungus
A protist
A virus

[1]

Table 1 shows the results of a study in one region on the effectiveness of using insecticide-treated bed nets daily to prevent malaria.

Table 1

Total number of people in the study	Number of people who use bed nets daily	Percentage of people who contracted malaria: Who use bed nets daily	Percentage of people who contracted malaria: Who do NOT use bed nets daily
800	680	1.5%	18.0%

A local health blog made the following statement:

'Study shows daily use of insecticide-treated bed nets is scientifically proven to prevent malaria.'

Give one piece of evidence from Table 1 that supports this statement.

[1]

Suggest one reason why the statement may not be fully valid.

[3]

Table 2 shows information about the number of deaths from malaria in the same region over several years.

Table 2

Year	Number of deaths from malaria per 100,000 people
2012	84
2014	72
2016	62
2018	54
2020	48
2022	44

Predict the number of deaths per 100,000 who died from malaria in 2024 if the trend stayed the same.

[1]

Suggest one other reason, apart from the use of bed nets, for the reduced number of deaths from malaria each year.

[3]

3.1 Communicable diseases

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Question 10

Malaria is a serious tropical disease spread by female Anopheles mosquitoes.

What type of pathogen causes malaria?

A bacterium
A fungus
A protist
A virus

[1]

Table 1 shows the results of a study in one region on the effectiveness of using insecticide-treated bed nets daily to prevent malaria.

Table 1

Total number of people in the study	Number of people who use bed nets daily	Percentage of people who contracted malaria: Who use bed nets daily	Percentage of people who contracted malaria: Who do NOT use bed nets daily
800	680	1.5%	18.0%

A local health blog made the following statement:

'Study shows daily use of insecticide-treated bed nets is scientifically proven to prevent malaria.'

Give one piece of evidence from Table 1 that supports this statement.

[1]

Suggest one reason why the statement may not be fully valid.

[3]

Table 2 shows information about the number of deaths from malaria in the same region over several years.

Table 2

Year	Number of deaths from malaria per 100,000 people
2012	84
2014	72
2016	62
2018	54
2020	48
2022	44

Predict the number of deaths per 100,000 who died from malaria in 2024 if the trend stayed the same.

[1]

Suggest one other reason, apart from the use of bed nets, for the reduced number of deaths from malaria each year.

[3]

3.1 Communicable diseases

Question 10

Table 1

Table 2

Markscheme

3.1 Communicable diseases

Question 10

Table 1

Table 2

Markscheme

3.1 Communicable diseases

Question 10

Table 1

Table 2

3.1 Communicable diseases Questions

3.1 Communicable diseases

Question 10

Table 1

Table 2

3.1 Communicable diseases Questions