4 Types of Infections HS 1Berryhill Cashion DHO

4 Types of Infections HS 1/Berryhill & Cashion DHO Ch. 14/DHO 8 Ch. 15

Pathogens cause infection & disease in different ways. Ø Produce toxins which damage the nervous system Ø Cause an allergic reaction (runny nose, sneezing) Ø Attack & destroy the living cells they invade

Infections and diseases can be classified as: 1. Endogenous 2. Exogenous 3. Nosocomial 4. Opportunistic

Endogenous • Infections or diseases that originate within the body. • Examples: congenital abnormalities, tumors, infections caused by microorganisms within the body (yeast vaginitis)

Exogenous • Infections or diseases that originate outside of the body. • Examples: pathogenic organisms that invade the body, trauma, electric shock

Nosocomial • Hospital acquired infection • Present in the health care facility & transmitted by the HCW • Many are antibiotic resistant • Example: MRSA

Opportunistic • Infections that occur when body’s defenses are weak • These don’t occur in individual’s with intact immune system. • Example: Kaposi sarcoma, cdiff

Do You Know? • Beth has a nosocomial infection. How did she get it? A. Hiking in the woods. B. Having a massage at a hotel spa. C. Eating contaminated food. D. Spending three days in the hospital. And the answer is…. . D

Do You Know? • An infection that develops when the body’s normal defenses are not working properly is a/an: A. Mutant infection. B. Nonpathogenic infection. C. Opportunistic infection. D. Recessive infection. And the answer is…. . C