Chlamydia

Question 1

What is special about chlamydia and other related bacteria and their habitat?

Answer 1

They are obligately intracellular and are very hard to culture/can’t be

Question 2

Chlamydia and chlamydophila: general characteristics

gram, species,

Answer 2

Gram negative
Species
- Chlamydia trachomatis
- Chlamydophila psittaci
- Phlamydiphila pneumoniae

Question 3

Life cycle of chlamydiae

Answer 3

Reticulate body: non infectious but metabolically active
Elementary body: infectious but metabolically inactive

Question 4

Chlamydia trachomatis strains and habitat

Answer 4

Strains: trachoma and lymphogranuloma venereum
Habitat: humans only

Question 5

Chlamydia trachomatis transmission

Answer 5

Sexual contact, eye to eye via fingers, droplets, towels, etc.

Question 6

Trachoma infection

cause, symptoms

Answer 6

Caused by chlamydia trachomatis
Symptoms
- chronic inflammatory
- eye surface, cornea ulcer
- scarring, blindness

Question 7

Adult/neonatal conjuctivitis

species, symptoms for ages

Answer 7

Chlamydia trachomatis
- acute, mucopurulent discharge

Adult
- genital infection before actual infection

Neonatal
- passage through infected birth canal

Question 8

Infant pneumonia

species, symptoms

Answer 8

Chlamydia trachomatis
- 2-3 wk incubation
- Rhinitis, bronchitis with dry cough

Question 9

Lymphogranuloma venereum

species and symptoms

Answer 9

Chlamydia trachomatis
- Painless ulcer, spontaneous healing
- Inflammed lymph nodes, then systemic symptoms
- Africa, Asia, S. America

Question 10

Urogenital infections caused by chlamydia trachomatis

gender, symptoms

Answer 10

Women generally asymptomatic, men symptomatic

Symptoms: urethritis, pelvic inflammatory disease and salpingitis, infertility in women
- prostatitis and erethritis in men

Question 11

Reiter syndrome

Answer 11

Caused by chalmydia trachomatis
Urethritis, conjunctivitis, arthritis

Question 12

Controlling STDs

Answer 12

Clinical: screening and treatment
Education: of clinicians and lab techs
Labs: quality, tests, performance
Surveillance: from local, state, management

Question 13

Chlamydophila pneumoniae habitat and transmission

Answer 13

Humans only
Respiratory secretions

Question 14

Chlamydophila pneumoniae infections

five kinds,sympotms

Answer 14

• Sinusitis
• Pharyngitis
• Bronchitis
• Pneumonia
• Guillain-Barre syndrome

Symptoms: mostly asymptomatic, third most common respir disease
- College age students, flu like symptoms

Question 15

Chlamydophila psittaci habitat and transmission

Answer 15

Any species and part of bird including feces
Transmission: inhaling dried poop, urine, respiratory secretions
- Animal workers and bird owners at risk

Question 16

Chlamydophila psittaci infection

Answer 16

Psittacosis or parrot fever
- Asymptomatic to pneumonia

Question 17

Rickettsiales basics and 4 genera

Answer 17

Athropod
Pleomorphic G- bacilli

Genera
- Rickettsia
- Orienta, travel only
- anaplasma
- ehrlichia

Question 18

What diseases do the american dog tick cause?

Answer 18

Rocky mountain spotted fever
Tularemia

Question 19

What diseases do the blacklegged tick cause?

Answer 19

Lyme disease
Anaplasmosis

Question 20

What diseases does the lone star tick cause?

Answer 20

Ehrlichiosis
Tularemia
Read meat allergy

Question 21

Rocky mountain spotted fever infection

Answer 21

American dog tick bite

Early: GI, rash on palms and soles

Late: mental status, respiratory, necrosis, CNS/renal system damage

Question 22

Anaplasma infection

Answer 22

Human anaplasmosis - caused by black legged tick

Early: fever, chills, GI symptoms
Late: respiratory failure, organ failure, bleeding problems

Question 23

Erlichia

Answer 23

Human erlichiosis - caused by lone star tick

Early: fever, chills, GI symptoms confusion and rash
Late: respir. failure, organ failure, bleeding problems, brain or CNS damage

Question 24

Treatment for arthropod borne diseases

Answer 24

Antibiotics early on