Actinomycetes Page  3
Actinomycetes   (order) Three genera Actinomyces species Nocardia species Streptomyces species
Gram Positive Filamentous Bacteria no YES aerobe Streptomyces PARTIALLY sometime  aerobe Nocardia no YES ANAEROBE Actinomyces yes no aerobe Mycobacteria ACIDFAST GRANULE OXYGEN GENUS
 
Actinomycosis A chronic suppurative and granulomatous disease of the cervico-facial, thoracic or abdominal areas
Actinomycosis Actinomyces israelii
Ecological Niche  Actinomyces Endogenous (man and animals)
 
CLINICAL SPECIMENS Actinomyces Pus
Sulphur granules
 
Drug of Choice Penicillin (large doses)
Serological Test None available
 
Nocardiosis Subcutaneous infections, pulmonary infections, and brain abscesses
Ecological Association Soil Endogenous ?
Geographic Distribution World wide
Nocardiosis N. asteroides – Pulmonary N. brasiliensis - Abscesses
 
 
Clinical Specimens Sputum Pus Biopsy tissue
 
Serological Test None available
Drug of Choice Sulfamethoxazole-Trimethoprim
STREPTOMYCOSIS Streptomyces species
Mycetoma Streptomyces species
Ecological Association Soil
 
Streptomyces  may invade bone
Clinical specimens Pus Biopsy material
 
 
Serological Test None available
Treatment Surgical debridement Sulfa drugs Amphotericin B
 

1 B Actino