Mycoplasma, Ureaplasma Flashcards
What determines, in part, the disease patterns caused by members of the genus Mycoplasma?
Host immune response
What disease patterns do members of the genus Mycoplasma cause in alligators?
Lethal pleuropneumonia, “flesh-eating disease”
Which antibiotics are ineffective for Mycoplasma infections? Why?
Penicllins and cephalosporins
They target cell wall production, but Mycoplasma spp. lack cell walls
How are Mycoplasma infections treated and prevented in pigs?
Create specific pathogen-free (SPF) herds
Vaccine available, can reduce weight loss but not completely protective
What disease patterns do members of the genus Mycoplasma cause in ruminants?
Mastitis, otitis, pneumonia, contagious bovine/caprine plueropneumonia (CBPP or CCPP)
What disease patterns does Ureaplamsa diversum cause in cows?
Granular vulvovaginitis, decreased conception rates, abortion, weak calf syndrome
What disease patterns do members of the genus Mycoplasma cause in dogs and cats?
Conjunctivitis, sinusitis, anemia
What disease patterns do members of the genus Mycoplasma cause in birds?
Conjunctivitis, sinusitis, air sacculitis, arthritis
What disease patterns do members of the genus Mycoplasma cause in fish?
Gill erythroedema
How are Mycoplasma infections treated and prevented in birds?
For broilers/breeders- cull carriers and seropositive birds
Layers- can medicate to reduce signs but not curative
Vaccine available, reduces signs and egg loss
What metabolic feature does Ureaplamsa diversum share with Corynebacterium renale?
They are both urease positive
What disease patterns do members of the genus Mycoplasma cause in pigs?
Enzootic pneumonia, porcine respiratory disease complex (PRDC), arthritis
How are Mycoplasma infections treated and prevented in cattle?
Test cows entering lactation, and cull or segregate positive cows
What is notable about the morphology of Mycoplasma?
They lack a cell wall
