Download Communicable Diseases

Communicable Diseases
Introduction to Healthcare
AHS 104
Communicable Disease
 A disease that can be transmitted directly or
indirectly from one person to another.
Incubation Period: Time between the invasion by the
pathogen and the onset of symptoms.
Prodromal Period: Refers to the initial stage of a
disease: interval between earliest symptoms &
appearance of rash or fever.
 Frequently children/people are contagious during this
period. Symptoms are not specific.
 Individual may attend work/school and spread
disease.
Communicable Disease
Fomite- Any material that absorbs and
transmits infection.
Chain of Infection-Refers to way in which
organism is spread and infects individuals.
Preventing spread of infection depends on
breaking the chain.
Careful hand washing is essential to the
containment of infection.
Factors contributing to virulence
of infectious disease
Factors that make one susceptible to acquiring
a disease
 Age
 Sex
 Genetic Makeup
 Nutritional Status
 Physical/Emotional Health
 Immune System
 Underlying Conditions
Immunity
 Natural or acquired
resistance to infection
 Race:Some have
greater immunity to
certain diseases.
 Immunity varies from
person to person.
 If a person is
immune to one
disease they are not
necessarily immune
to another.
Immunity
 Acquired Immunity
 Is not due to inherited factors.
BUT…
 Is acquired as a result of having the disease or
artificially acquired by vaccines or immune serums.
 Vaccines are not strong enough to cause the disease, but
stimulates the body to develop an immune reaction.
Video One
Video Two
Immunity
 If immediate protection is needed,
antibodies are obtained from
other sources (animals and some
humans).
 Live or dead organisms may be
used.
 This type of immunity is called
Passive Immunity. It
acts immediately, but does not
last long as immunity that the body
actively produces.
 Breast feeding provides passive
immunity to an infant from his/her
mother’s antibodies that are passed
to it in mother’s breast milk.
Common Communicable Diseases







Scabies
Lice
MRSA
VRE
Chicken Pox
German Measles
Herpes Viruses
 Cold Sores
 Fever Blisters
 Genital Herpes
 Infectious
Mononucleosis
 Lyme Disease
 Measles (Rubeola)
 Meningitis
 Mumps
 Poliomyelitis
 Roseola
 Smallpox
 Strep Throat
 Whooping Cough
Online Learning Assignment
 Online Assignment
Quiz Grade
www.teacherpage.com/adeyemi
 Take Home Quiz
 This will help you significantly for your test!