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Infection - An invasion of microorganisms into the body that are capable of producing a disease.
There are six links in the chain of infection.
-Pathogen
-Reservoir
-Portal of exit
-Mode of transmission
-Portal of entry
-Susceptible host
1.PATHOGEN - It is an organism with the ability to cause disease.
(Bacteria,virus, fungi, protozoa, parasitic worms, rickettsiae)
2. RESERVOIR - It is a place within which microorganisms can thrive and reproduce.
(The most common reservoir is the human body )
3. PORTAL OF EXIT - It provides a way for a microorganism to leave the reservoir.
(Through the nose, mouth, body feces)
4.MODE OF TRANSMISSION - It is the method by which the organism moves from one host to another.
(Direct contact, indirect contact, air-borne, food-borne, water-borne, vector-borne)
5. PORTAL OF ENTRY - It is an opening allowing tje microorganism enter tbe host.
(Body otifices, mucus membrance, breaks in the skin
6. THE SUSCEPTIBLE - It is a person who cannot resists a microorganism invading its body.
P.E
CHESS
Chess is a board game for two players, each beginning with 16 pieces of 6 kinds
that are moved accordingly to individual rules, with the objective of checkmating
the opposing king.
10 Benefits in Playing Chess
- brings people together
- teaches you how to win and lose
- helps children
- It can help you focus
- serve as an educational tool
- develops one's creativity
- builds confidence
- develops problem-solving skills
- exercises the brain
- helps you being calm
ROOK
The rook may move forward, backward, and to the sides. The rook are particularly powerful pieces when they are protecting each other and working together.
BISHOP
It can move as far as it wants, but only diagonally. Each bishop starts on one color (light or
dark) and must always stay on that color
KNIGHT
The knight moves by going two squares in one direction, and the one more move just like an "L" shape. It's the only piece that can move over other pieces.
PAWN
Pawn moves forward but captures diagonally. It can never move backwards. On
its first move, the pawn can advance two squares at a time.
QUEEN
The queen is the most powerful piece. It moves in any one straight direction - forward, backward, sideways or diagonal.
KING
The king is the most important chess piece; however, it is also considered one of the weakest.
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