Transcript Infection

Unit 12
Microorganisms
Non pathogens - useful to our body, do not cause
disease. Help process cheese, bake bread…
Pathogen- cause disease/ infection. Grow in warm, dark,
moist environment
Microbes- germs that cs infections
Nosocomial infection occurs in a healthcare facility.
Bacteria
 Bacteria- one cell, cs infection skin, respiratory,
urinary, blood
 Shape: coccus= circle, bacillus= rod, spirillum= spiral
 Colonies: diplo=pairs, strepto =chains,
staphylo=cluster
 Important for identification & determining treatment
 Can take antibiotics
Bacterial Infections
 Antibiotics used to treat
 MRSA- methicillin resistant Staph
 Streptococcus
 E Coli
 Pseudomonas
 Salmonella
 Chlamydia
 Gonorrhea
Fungi
 Yeast- single cell.
 Infect: mouth, vagina, = candida albicans
 skin (ringworm) Tinea capitis
 Feet = Tinea pedis (athletes foot)
 Mold- Aspergillus- ling infection
 *opportunistic parasites
 *AIDS pt very susceptible for infections
Virus & Protozoa
 Smallest organism
 Common infections: hepatitis, herpes, HIV, AIDS,
chicken pox, Flu, common cold, measles, mumps
 NO CURE, treat symptoms
 Protozoa: one cell, lives on matter
 Malaria, Toxoplasmosis
Viral Infections
 Shingles
 Flu
 Hepatitis
 Aids
 Herpes
 cold
Chain of Infection
Causative
Agent
Susceptible
Host
Reservoir or
source
Portal of
Entry
Method
Of
transmission
Airborne
Droplet
Contact
Portal of
Exit
Natural Defenses
 Tears
 Mucous Membranes
 Intact skin
 HCL acid in stomach
 Hair
 WBC
 Enzymes
Signs of illness
 Abnormal VS- 1st indicator that something is wrong
 Inflammation
 Always make sure VS are checked and accurate.
Preventing infections
 HAND WASHING
 Water intake
 Exercise
 Diet
 Healthy bowel habits
 Hygiene
 Immunizations/vaccines