Pyogenic Bacteria

Question 1

Staphylococcus aureus Diseases
Pyogenic

Answer 1

• Skin Abscesses
• Food Poisoning
• Toxic Shock
• Nosocomial Infections
• Impetigo/School Sores: contagious red sores
• Scalded Skin Syndrome

Question 2

Staphylococcus aureus Characteristics
Pyogenic

Answer 2

• Pyogenic Bacteria
• Spherical
• Grape-Like Clusters
• Gram Positive
• Facultative Anaerobe

Question 3

Staphylococcus aureus Virulence
Pyogenic

Answer 3

• Enterotoxins
• Enzymes
• Capsule (resists phagocytosis)

Question 4

Staphylococcus aureus Modes of Transmission
Pyogenic

Answer 4

• Direct: Droplet Transmission (Pneumonia)
• Direct: Broken Skin (Impetigo, Skin ABscesses, Scalded Skin Syndrome)
• Indirect: Fomites
• Indirect: Airborne Transmission
• Indirect: Ingestion of contaminated food

Question 5

Staphylococcus aureus Portals of Entry and Exit
Pyogenic

Answer 5

• Broken Skin: Entry through broken skin; Exit through skin abscesses
• GI Tract: Entry through ingestion of contaminated food; Exit through release of bacteria through diarrhea
• Respiratory Tract: Inhalation of droplets; Exit through coughing and snot

Question 6

Streptococcus pyogenes Diseases
Pyogenic

Answer 6

• Strep Throat: Sore throat
• Rheumatic Fever: Inflammatory disease that occurs when strep throat or scarlet fever are not resolved
• Scarlet Fever: (Childbirth Fever) Red rash, strawberry tongue, desquamation of skin
• Puerperal Sepsis: Nosocomial infection of the uterus from childbirth or abortion
• Impetigo: Localized skin infection with small vesicles that turn into weeping lesions
• Erysopelas/St. Anthony’s Fire: Localized skin infection that causes an intense burning sensation

Question 7

Streptococcus pyogenes Characteristics
Pyogenic

Answer 7

• Pyogenic
• Spherical
• Chain-Like Arrangement
• Gram Positive
• Facultative Anaerobe

Question 8

Streptococcus pyogenes Virulence
Pyogenic

Answer 8

• Toxins
• Enzymes
• Capsule (resists phagocytosis)

Question 9

Streptococcus pyogenes Modes of Transmission
Pyogenic

Answer 9

• Direct: Droplet Transmission (Step throat, scarlet fever)
• Direct: Broken Skin (Impetigo, St. Anthony’s Fire)
• Indirect: Fomites (Puerperal Sepsis, Childbirth Fever)

Question 10

Streptococcus pyogenes Portals of Entry and Exit
Pyogenic

Answer 10

• Broken Skin: Entry through broken skin; Exit through skin abscesses
• Respiratory Tract: Entry through droplet transmission; Exit through coughing or snot

Question 11

Streptococcus agalactiae Diseases
Pyogenic

Answer 11

• Bacterial Sepsis (STREP SEP)
• Meningitis
• Seizures
• Psychomotor Retardation
• Uterine Infections

Question 12

Streptococcus agalactiae Characteristics
Pyogenic

Answer 12

• Spherical cells that often appear alone, in pairs or chains
• Saprophyte: Survives on dead or decaying matter
• Pyogenic: Pus-forming Bacteria
• Enterotoxin: Type of exotoxin that affect host cells lining the gastrointestinal tract.
• Facultatively Anaerobic: Prefer oxygen but can go without it if forced to.
• Gram Positive: Cell wall is thick; Purple when stained; killed by penicillin

Question 13

Streptococcus agalactiae Virulence
Pyogenic

Answer 13

• Toxins
• Enzymes

Question 14

Streptococcus agalactiae Modes of Transmission
Pyogenic

Answer 14

• Congenital transmission: placental or in the birth canal
• Ingestion: contaminated food/water

Question 15

Streptococcus agalactiae Portals of Entry and Exit
Pyogenic

Question 16

Streptococcus pneumonia/Pneumococcus Diseases
Pyogenic

Answer 16

• Lobar pneumonia: Inflammation of one or several lung lobes
• Otitis Media: Middle ear infection
• Meningitis or pneumococcal meningitis: Infection of the cerebrospinal fluid

Question 17

Streptococcus pneumonia/Pneumococcus Characteristics
Pyogenic

Answer 17

• Spherical cells that often appear in chains
• Pyogenic: Pus-forming Bacteria
• Facultatively Anaerobic: Prefer oxygen but can go without it if forced to.
• Gram Positive: Cell wall is thick; Purple when stained; killed by penicillin

Question 18

Streptococcus pneumonia/Pneumococcus Virulence
Pyogenic

Answer 18

Capsule: Resists phagocytosis

Question 19

Streptococcus pneumonia/Pneumococcus Modes of Transmission
Pyogenic

Answer 19

• Direct: droplet transmission or direct oral contact
• Indirect: Contaminated Fomites

Question 20

Streptococcus pneumonia/Pneumococcus Portals of Entry and Exit
Pyogenic

Answer 20

Respiratory Tract: Coughing or nasal drainage

Question 21

Neisseria gonorrhoeae Diseases
Pyogenic

Answer 21

• Gonorrhea: STD infection of the genitals
• Ophthalmia Neonatorum: Congenital infection spread from the mother to the eyes of the baby during childbirth
• Pelvic Inflammatory Disease: (PID) Infection of the female reproductive organs

Question 22

Neisseria gonorrhoeae Characteristics
Pyogenic

Answer 22

• Spherical
• Diploccoccus: bacteria that appear in pairs of cocci
• Pyogenic: Pus-forming Bacteria
• Aerobic: Bacteria that prefer to live in oxygen-filled environments
• Gram Negative: cell wall is thin; pink when stained; penicillin-resistant

Question 23

Neisseria gonorrhoeae Virulence
Pyogenic

Answer 23

• Pili/Fimbriae: help attach the cell to surfaces
• Endotoxins

Question 24

Neisseria gonorrhoeae Modes of Transmission
Pyogenic

Answer 24

• Direct: Sexual Contact or Congenital contact
• Indirect: Contaminated Fomites

Question 25

Neisseria gonorrhoeae Portals of Entry and Exit Pyogenic

Answer 25

- Genitourinary Tract: Through genitals or genital secretions - Eyes: Through the eyes or eye secretions

Question 26

Neisseria meningitidis Diseases Pyogenic

Answer 26

- **Epidemic Meningitis**: (Meningococcal meningitis): Infection of the meninges - **Meningococcemia**: Bacteria spread to blood stream - **Waterhouse-Fredichsen Syndrome**: Spontaneous bleeding in the subcutaneous tissues causing appearance of purple patches on the skin

Question 27

Neisseria meningitidis Characteristics Pyogenic

Answer 27

- Spherical - Diploccoccus: bacteria that appear in pairs of cocci - **Pyogenic**: Pus-forming Bacteria - **Aerobic**: Bacteria that prefer to live in oxygen-filled environments - **Gram Negative**: cell wall is thin; pink when stained; penicillin-resistant - Can be fulminant: rapid onset, short duration; ends in death

Question 28

Neisseria meningitidis Virulence Pyogenic

Answer 28

- Pili/Fimbriae: help attach the cell to surfaces - Endotoxins - Capsule (resists phagocytosis)

Question 29

Neisseria meningitidis Modes of Transmission Pyogenic

Answer 29

- Direct: Droplet transmission or direct oral contact (saliva) - Indirect: Contaminated Fomites

Question 30

Neisseria meningitidis Portals of Entry and Exit Pyogenic

Answer 30

Respiratory Tract: Through droplet transmission or saliva