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Biology paper 1
INFECTIOUS DISEASES
Measles and HIV
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Created by
Laaibah Riaz
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Cards (21)
What should you be able to describe by the end of the video?
Causes and symptoms of
measles
and
HIV
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What are viruses classified as?
Pathogens
that cause
infectious disease
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Can viruses be killed by antibiotics?
No
, viruses
cannot
be killed by antibiotics
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What are the key facts about measles?
Highly infectious
disease
First symptom:
fever
Develops
red skin rash
after
three days
Spread through
droplets
from coughs or sneezes
Can cause
serious complications
Most
children
vaccinated against measles
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What is the first symptom of measles?
A
fever
or very high
temperature
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How is measles spread?
Through
droplets
when an
infected
person coughs
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What can complications from measles damage?
The
breathing system
and the
brain
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Why are most children vaccinated against measles?
To prevent serious
complications
and
fatalities
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What are the key facts about HIV?
First symptom:
flu-like
illness
Symptoms disappear after one or two
weeks
Virus attacks
immune system
cells
Immune system becomes severely damaged
Can lead to late
stage
HIV or
AIDS
Patients can develop other
infections
or
cancer
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What is the first symptom of HIV?
A
flu-like
illness
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What happens to the immune system over time with HIV?
It
becomes
severely damaged
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What infections can a damaged immune system not fight off?
Other infections like
TB
and
cancer
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What is the late stage of HIV called?
AIDS
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How can HIV be treated?
Using
antiretroviral
drugs
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What do antiretroviral drugs do for HIV patients?
Stop the virus from
multiplying
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What must patients do with antiretroviral drugs?
Take them for the rest of their
life
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How is HIV transmitted?
Through
exchange
of fluids between humans
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How can HIV be spread among drug users?
By sharing
infected
needles
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What are the key points about the workbook mentioned?
Contains questions on
measles
and
HIV
Accessible via a link provided in the video
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What is the outcome for patients taking antiretroviral drugs?
They can lead a normal
life expectancy
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What is the fatality risk associated with late-stage HIV?
It is frequently fatal
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