Chlamydiaceae Flashcards
1
Q
Important Chlamydophila species
A
- Cp. psittaci (birds)
- Cp. felis (cats)
- Cp. abortus (ruminants/swine)
- Cp. pecorum (multiple hosts)
2
Q
Characteristics of Chlamydiae
A
- obligate intracellular gram negatives
- rudimentary cell walls lack peptidoglycan but contain LPS-family specific
- require host derived ATP for energy
- cycle b/w infectious elementary bodies and replicative reticulate bodies
3
Q
Can elementary bodies survive outside the host?
A
Yes, they can survive for weeks in organic matter
4
Q
How are Chlamydial diseases spread?
A
Direct contact or aerosols (fomite transmission is possible)
5
Q
Cp. psittaci disease patterns
A
- primarily in birds
- reportable disease: psittacosis
- yellow/green gelatinous droppings
- hepatomegaly, splenomegaly
- zoonotic infection with flu-like symptoms
6
Q
Cp. felis disease patterns
A
- conjunctivitis, pneumonia in cats
- zoonotic infection with conjuctivitis, flu-like symptoms
7
Q
Cp. abortus disease patterns
A
- colonize placenta in ruminants and swine
- Enzootic Abortion of Ewes (EAE)
- zoonotic infection with pregnant women working with sheep
8
Q
Cp. pecorum disease patterns
A
- not host specific
- infertility and genito-urinary disease of koalas
- bovine encephalomyelitis
- enteritis and arthritis in swine and sheep
9
Q
What is used for diagnosis of chlamydial infections?
A
- cytology
- serology
- culture
- PCR
10
Q
Treatment and control for birds?
A
- quarantine and culling
- tetracycline
- sanitation
- Psittacosis is a reportable disease
11
Q
Treatment and control for cats?
A
- vaccines lessen ocular and respiratory signs
- segregate affected cats
- tetracycline
12
Q
Treatment and control for large animals?
A
- isolate or cull
- long acting tetracycline
- disinfect pens
- vaccines for sheep and pigs, no prevention for cows
13
Q
Which species have KNOWN zoonotic potential?
A
- Chlamydophila psittaci
- Chlamydophila abortus
14
Q
Which species has REPORTED zoonotic potential?
A
Chlamydophila felis
