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Biology 4 > Transmission of pathogens > Flashcards

Transmission of pathogens Flashcards

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1
Q

What is direct transmission?

A

No other organism carries pathogen

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2
Q

What is indirect transmission?

A

Pathogen transmitted by another organism

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3
Q

How are diseases spread by direct physical contact?

A

This is when an infected person or touching contaminated surfaces with the disease

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4
Q

How are diseases spread by faecal - oral transmission?

A

Oral transmission, usually by eating contaminated food or water

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5
Q

How are diseases spread by droplet transmission?

A

Small water droplets in the air transmit disease

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6
Q

How are diseases spread by vectors?

A

Organism that carries a pathogen from 1 host to another

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7
Q

How are diseases spread by spores?

A

Can be carried in the air or surfaces or soil

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8
Q

What affects the transmission of direct physical contact?

A

Hygiene: washing hands regularly, keeping surfaces clean, cleaning and disinfecting cuts and abrasions. Sterilising surgical equipment, not using condoms

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9
Q

What affects the transmission of faecal - oral transmission?

A

Treating human sewage that will be used in farming, treating water that will be drunk. Washing all fresh food and preparing food as well

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10
Q

What affects the transmission of droplet transmission?

A

Catch it - bin it - kill it, cover mouth when sneezing or coughing, Use a tissue so it can be disposed of correctly

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11
Q

What affects the transmission of vectors?

A

Using pesticides/mosquito mets to stop transmission

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12
Q

What affects the transmission of spores ?

A

Use a mask/washing skin after contact with soil

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13
Q

What does over-crowding affect the transmission of disease?

A

Increase droplet infection and direct physical contact

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14
Q

What does poor ventilator affect the transmission of disease?

A

Increase droplet infection

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15
Q

How does poor health affect the transmission of disease?

A

Weakened immune systems of HIV/ AIDS

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16
Q

How does poor diet affect the transmission of disease?

A

Can reduce effectiveness of immune systems, faecal - oral transmission

17
Q

How does homelessness affect the transmission of disease?

A

Links to poor health, diet and over - crowding

18
Q

How are diseases in plants directly transmitted in roots?

A

pathogens can enter the through the broken roots

19
Q

How are diseases in plants indirectly transmitted?

A

Insects carry pathogens or their spores

20
Q

What disease type is transmitted by wind?

A

Spores

21
Q

What disease type is transmitted by leaves?

A

The contaminated leaves can carry the pathogens back into the soil

Biology 4 (20 decks)

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