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Transcript
COMMUNICABLE DISEASES
Presenter
Mr. Dudley Freeman
Director of Staff Development
OKLAHOMA CITY COMMUNITY COLLEGE
AS, BS, MS, & OSHA Certified Trainer
Helpful Terminology
Antibodies: infection fighting proteins produced
by white blood cells that fight bacterial infections.
 Antibiotics: medicines that help fight bacterial
infections.
 Immune system: body system for fighting
infections.

Helpful Terminology
Immunization (vaccination): specific
substance containing weakened or killed
pathogens given to build resistance to A given
infection.
 Infection: condition caused by pathogenic
material in the body.
 Exposure: coming into contact with A
pathogenic material.

Pathogens

What are they?

What can they do to you?
Types Of Pathogens





Virus: A parasitic microscopic protein material (DNA
or RNA) covered by an envelope of lipoprotein.
Nonliving.
Bacteria: one-celled living organism.
Fungi: single and multi-celled plants.
Yeast: one celled , oval shaped fungus.
Mold: A growth of fungi.
How Pathogens Enter The Body
Alimentary canal (airborne).
Parenteral openings (direct and indirect).
Vector transmission (bites and scratches from
insects, animals, etc.).
Through mucous membranes. In mouth, nose, and
eyes (direct and indirect).
By sexual contact (direct).
Illnesses They Cause



Virus: measles, colds, mumps, influenza, polio, hepatitis A,
B, C, D, E, & G, meningitis, herpes, and others.
Bacteria: food poisoning, Strep, tetanus, scarlet fever,
hepatitis, whooping cough, malaria, tuberculosis, diphtheria,
meningitis, etc.
Yeasts & molds: athlete’s foot, ringworm, yeast infections,
meningitis & others.
Conditions For Illness
A pathogen must be present.
 Must be enough of it to overcome immune
system.
 The victim must be susceptible to the
pathogen.
 The pathogen must pass through the correct
portal of entry.

Pathogen Control
Personal protective equipment.
 Good preventive practices.
 Engineering controls.
 Administrative processes.
 Healthy lifestyle.

Pathogen Control
Personal hygiene (proper hand washing is best
deterrent to infectious diseases).
 Heating for one minute at or above 180º F. Will
kill.
 A 1:10 solution of household bleach and water is
A good and inexpensive disinfectant.

Symptoms
Of Viruses
Flu-like, fatigue, appetite loss;
 Colon ulcers & inflammation;
 Lung disease, anemia increase;
 Jaundice; Liver problems;
 Fever, acne, and joint pain.

Symptoms
Of Viruses
Diseases caused may be acute or chronic.
 Most are very contagious.
 No medicinal treatment or cure for viral
diseases.
 Must treat the symptoms, not the disease.

Hepatitis A, B, C, D, E, & G
Viruses
Causes liver (and other) infections.
Forms cannot be identified without testing.
Acquired primarily through:
 Fecal-oral route (A).
 Human blood contact or other body fluids (B).
 Human blood (C).
Tuberculosis
Bacterial infection of respiratory system.
 Bacteria usually airborne.
 Transmitted by airborne mist droplets or
particles.
 Infectious, but treatable.
 Cough usually chronic. May or may not be
productive.

Tuberculosis
Symptoms
Fatigue, listlessness, malaise.
 Fever and night sweats .
 Weight loss.
 Victim usually quarantined.
 Very treatable, but must follow regimen.
