Actinomyces
Actinomyces is a topic covered in the Johns Hopkins ABX Guide.
To view the entire topic, please sign in or purchase a subscription.
Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:
-- The first section of this topic is shown below --
MICROBIOLOGY
- Thin, branching (filamentous or beaded) Gram-positive bacillus [Fig 1].
- Microaerophilic, grow best anaerobically.
- VERY fastidious, often does not grow in culture.
- Agents: A. israelii, A. naeslundii, A. odontolyticus, A. viscosus, A. meyer and Propionibacterium propionicum and A. gereneseriae.
- Virtually all cases are mixed infections with other bacteria including Eikenella corrodens, Bacteroides spp, S. aureus, Streptococcus spp., Aggregatibacter actinomycetemcomitans, and/or Fusobacterium sp.
- Normal flora of mouth, gut, genital tract.
- Diagnosis is often made by histopathology -- not by culture, even when suspected.
-- To view the remaining sections of this topic, please sign in or purchase a subscription --
MICROBIOLOGY
- Thin, branching (filamentous or beaded) Gram-positive bacillus [Fig 1].
- Microaerophilic, grow best anaerobically.
- VERY fastidious, often does not grow in culture.
- Agents: A. israelii, A. naeslundii, A. odontolyticus, A. viscosus, A. meyer and Propionibacterium propionicum and A. gereneseriae.
- Virtually all cases are mixed infections with other bacteria including Eikenella corrodens, Bacteroides spp, S. aureus, Streptococcus spp., Aggregatibacter actinomycetemcomitans, and/or Fusobacterium sp.
- Normal flora of mouth, gut, genital tract.
- Diagnosis is often made by histopathology -- not by culture, even when suspected.
There's more to see -- the rest of this entry is available only to subscribers.