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Communicable Diseases

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by

Brian Anderson

on 4 March 2014

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Transcript of Communicable Diseases

How are Communicable Diseases Transmitted
Pathogen
Organism that causes disease
Preventing Communicable Disease
Practicing healthful behaviors.
Hand washing: the single most effective strategy for preventing the spread of disease.
Handling food properly:foodborne illness occurs in places where food is handled improperly. Always wash hands before and after handling food. separate raw meat from other foods. Cook foods to proper temperature.
Other Prevention Strategies
Eat a balanced diet. Participate in regular physical activity. Avoid the use of alcohol, tobacco and other drugs.
Avoid unnecessary contact with people who are ill.
Take care of your self when you are ill. cover your mouth when you cough.
Learn to manage stress. Stress makes you vulnerable to illness.
Communicable Diseases
Protozoans
Single-celled organisms that are larger and more complex than bacteria
Most are harmless, but some can cause disease
Communicable Disease
A disease that is spread from one living thing to another through the environment.
Infection
a condition that occurs when pathogens enter the body, multiply, and damage body cells.
Viruses
Pieces of genetic material surrounded by a protein coat
By themselves they are inactive.
They need living cells to Reproduce.
They usually run their course, antibiotics don't work against them.
Bacteria
Single-celled microorganisms
Live almost everywhere on earth
Most bacteria are harmless, and many types are essential for life (digestive system)
Some produce a toxin (substance that kill cells or interfere with their functions.
Most bacterial diseases can be treated with antibiotics
Fungi
Are plantlike organisms, such as molds and yeasts.
Some types can cause disease of the skin, diseases of the mucous membranes or the lungs
Rickettsias
Pathogens that resemble bacteria.
Like viruses, they multiply by invading the cells of another life form.
They are often spread from bites from insects such as fleas or lice
Direct Contact
Direct contact: touching, biting, kissing, and sexual contact.
Sneezing and coughing can spray infectious droplets of saliva or mucus into ta nearby person's eyes, nose, or mouth.
A pregnant woman may also transmit an infection to her unborn child.
Puncture wounds
Airborne Transmission
Pathogens from a sneeze or a cough may float in the air for a long time and travel long distances.
Indirect Contact
Contaminated Objects: Inanimate objects can become contaminated with infectious discharges or secretions.
Vectors: an organism, such as a tick, carries and transmits pathogens to humans or other animals.
Water and food: Careless handling and storage of food are major sources of contamination and illness
water sources contaminated.
Full transcript