The document discusses health, illness, and infectious diseases. It defines health and illness, noting that symptoms indicate illness. It recommends healthy habits like sufficient sleep, a balanced diet with regular meals including breakfast, hand washing, and fresh air. Illnesses can be infectious or non-infectious, with infectious illnesses spread by bacteria, viruses, or other microorganisms. Common microbes that cause illness are described along with how infections enter the body. The summary recommends preventing infections through practices like wound cleaning, hand washing before eating, and covering coughs/sneezes. Vaccines and treatments for bacterial, fungal and viral infections are outlined.

1. LUCIA MARTIN and PATRICIA SESMA

2. HEALTH AND ILLNESS
 HEALTH: Is the state of physical and mental well-
being.
 ILLNESS: Is the opposite of health.
 SYMPTOMS: Like coughs,pain or fever, tell us that
our bodies are ill.

3. HEALTHY HABITS
To stay well, we must have healthy habits.
We must:
 Sleep 8 or 9 hours every night and rest when we are
tired.
 Eat a balanced diet.
 Eat five meals a day and always eat breakfast.
 Wash our hands before meals and have a shower
every day.
 Breathe fresh air and avoid places with smoke.

4. TYPES OF ILLNESS
An illness can be non-infectious or infectious:
 Non-infectious illnesses: Have different
causses.Injuries or poor diet can make us ill.
 Infectious illnesses: Are causses by harmful
bacteria or viruses.They can be contagious or
non- contagious.

5. CONTAGIOUS OR NON-CONTAGIOUS
Contagious
illnesses.
Non-contagious
illnesses.

6. BACTERIA
Bacteria are unicellular micro-organisms.
There are two types:
 Beneficial bacteria: Like the one used in making
yogurth.
 Harmful bacteria: Cause illness. Are called pathogenic

7. OTHER MICRO-ORGANISMS
There are other micro-organisms that can cause
illnesses.They can be unicellular or multicellular.
Amobae
Candida
Plasmodia
Fungi

8. VIRUSES
A virus is not a micro-organisms. It causes infections
illnesses.
It is not a living-thing but it needs cells to carry out
its life processes.
Viruses cause many illnesses such as flu, measles,
herpes and AIDS.

9. PREVENTING INFECTIOUS
Pathogenic micro-organisms can enter our bodies
in differents ways.
 Through the respiratory system.
 Through the digestive system.
 Through the wounds and cuts.

10. HOW CAN WE PREVENT INFECTIONS?
 Desinfec wounds.
 Wash your hands before eating .
 Wash uncooked food.
 Cover your mouth when you cough or sneeze.
 Do not share eating utensils.

11. VACCINES
Vaccines can prevent some illnesses caused by bacteria
or viruses.
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?
When viruses or micro-organisms enter in our bodies
and cause an infections, doctors prescribe different
treatments.
 Infections caused by bacteriaare trated by antibiotics.
 Infections caused by fungi are trated by anti-fungal.
 Infections caused by viruses are treated with
medicines that help to reduce symptoms

13. FIRST AID KIT

14. THE END
PATRICIA SESMA
and
LUCIA MARTIN