1. Staphylococcus Streptococcus
Bacterial Diseases
Staphylococcus
Streptococcus

2. Pathogenicity
“the state of producing or being able to produce pathological changes and disease”

3. Staphylococcus
“a genus of gram-negative, nonmotile, opportunistic bacteria which tend to aggregate in irregular, grape-like clusters”

4. Readings Question #1
Staphylococcus aureus is the most pathogenic of the staphylococci. What are its toxins capable of doing? What enzymes does it produce, and what is their known effect?

5. Staphylococcal Food Poisoning
caused by ingesting an enterotoxin
high resistance to heat, drying and radiation, and high osmotic pressures
inhabitant of nasal passages…contaminates the hands…..readily enters food
mechanical vectors
mayonnaise, cream sauces

6. Skin and Wound Infections
Sty: “infected follicle of an eyelash”

7. Skin and Wound Infections (cont’d)
Pimple: infected hair follicle
Abscess: more serious hair follicle infection
furuncle/boil: superficial
carbuncle: deeper
Risk of underlying tissues becoming infected
Toxemia: toxins circulate

8. Scalded Skin Syndrome

9. Toxic Shock Syndrome
S. aureus growth associated with the use of a new type of highly absorbent vaginal tampon
swell with menstrual fluids and adhere to the vagina
tears in the vaginal wall

10. Streptococcus
“spherical shaped bacteria occurring in chains” What are the implications for the embalmer when dealing with saprophytes?

11. Streptococcus pneumoniae ( pneumococcus)
gram-positive ovoid bacterium
cell pairs surrounded by capsule
common cause of:
1) lobar pneumonia
2) meningitis
3) otitis media

12. Lobar Pneumonia Readings question #2:
What is lobar pneumonia, and how is it characterized?
What are some of the predisposing conditions for this disease?
penicillin and fluoroquinolones

13. Meningitis 70% of the population are healthy carriers
Gram-positive encapsulated diplococcus
Leading cause of bacterial meningitis
Most cases between 1 month and 4 years
Broad-spectrum cephalosporins
CSF obtained by a spinal tap
Vaccine: Pneumococcal Conjugated Vaccine

14. Otitis Media
85% before 3 years of age (Eustachian Tubes)

15. Streptococcus pyogenes
Scarlet Fever: streptococcal pharyngitis
Septic Sore Throat: respiratory secretions
penicillin
Puerperal Sepsis: Childbirth/Childbed Fever
Rheumatic Fever: arthritis and fever
50% inflammation of the heart
Syndenham’s chorea