1. CARLA CONTRERAS RODRIGO

2. HEALTH AND ILLNESS
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•
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HEALTH IS A STATE OF WELL-BEING.
ILLNESS IS THE OPPOSITE OF HEALTH.
FEVER,COUGHS OR PAIN ARE SYMPTONS OF
ILLNESS.

3. Healthy habits
Sleep 8 or 9 hours every night.
Eat a balanced diet.
Eat five meals a day. ALWAYS have
breakfast.
Wash our hands before meals, have a shower
every day.
Breathe fresh air.

4. Types of illness
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Infectious: caused by harmful bacteria or viruses.
They can be
Contagious
Non-contagious
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Non – infectious illnesses.

5. Bacteria
Bacteria are unicellular
micro-organisms
.
There are two types:
Beneficial bacteria,used
to make yoguhrt.
Harmful bacteria,called
pathogenic
bacteria, that can cause

6. Pathogenic bacteria can
cause…
* Bacterial meningitis.
* Affected area: nervous system.
* Symptoms: fever,stiff neck and severe headaches.
 Salmonellosis.
 Affected area: digestive system.
 Symptoms: diarrhoea, stomach pain, fever.
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•
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Bronchitis
Affected area: bronchi in the respiratory system.
Symptoms: persistent cough,fever.

7. Other micro-organisms.
Other micro-organisms can cause illnesses.They
can be unicellular or multicellular.
Amoebae : Unicellular micro-organism.
Plasmodia : Unicellular micro-organism.
Candida :Unicellular micro-organism.
Fungi : Multicellular micro-organism.

8. VIRUSES.
A VIRUS IS NOT A MICRO-ORGANISM. IT CAUSES
INFECTIOUS ILLNESSES.
IT IS NOT A LIVING THING BUT IT NEEDS CELLS TO
CARRY OUT ITS LIFE PROCESSES.
FLU,MEASLES ,HERPES OR AIDS ARE ILLNESSES
CAUSED BY VIRUSES.

9. Pathogenic micro-organisms can
enter our body in different ways:
Through the respiratory system.
Through the digestive system.
Through wounds and cuts in the skin.

10. How can we prevent
infections?
 Disinfect wounds.
 Wash your hands before eating.
 Wash uncooked food.
 Cover your mouth when you cough.

11. VACCINES
VACCINES CAN PREVENT SOME ILLNESSES
CAUSED BY VIRUSES OR BACTERIA.
VACCINES INTRODUCE INTO OUR BODIES THE
MICRO-ORGANISM OR VIRUS THAT IS MAKING
US ILL.
THE BODY REACTS TO THE VIRUS AND
PRODUCES SUBSTANCES TO DESTROY IT.

12. HOW DO WE TREAT
INFECTIONS ?
INFECTIONS CAUSED BY BACTERIA: ANTIBIOTICS.
INFECTIONS CAUSED BY FUNGI :ANTI-FUNGAL
MEDICINES.
INFECTIONS CAUSED BY VIRUSES : MEDICINES
THAT HELP TO REDUCE THE SYMPTOMS.

13. FIRST AID KIT