2. HEALTH AND ILLNESS
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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.
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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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.
