Bacteroides fragilis (Veillon and Zuber) Castellani and Chalmers (ATCC® 23745)

Strain Designations: [ICPB 3498, NCTC l0581]  /  Type Strain: no  /  Biosafety Level: 2

Deposited As "Sphaerophorus intermedius" Berg and Hovig
Strain Designations [ICPB 3498, NCTC l0581]
Media testing
Quality control strain
Quality control strain for API products
Pleural fluid
Biosafety Level 2

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Product Format freeze-dried
Storage Conditions Frozen: -80°C or colder
Freeze-Dried: 2°C to 8°C
Live Culture: See Propagation Section
Preceptrol® yes
Type Strain no
Referred to as the type strain of Sphaerophorus intermedius
Medium ATCC® Medium 1490: Modified chopped meat medium
Growth Conditions
Temperature: 37°C
Atmosphere: Anaerobic gas mixture; 80% N2-10% CO2-10% H2
Name of Depositor B Hovig
Pleural fluid

Bergan T, Hovig B. A new species, Sphaerophorus intermedius, isolated from empyema. Acta Pathol. Microbiol. Scand. 74: 421-430, 1968. PubMed: 4889145

Zentralbl. Bakteriol., I Abt., Orig. 211: 107-116, 1969.

API Rapid ID 32 A. bioMerieux.

Medical microbiology--Culture media -- Part 4: Transport systems for specimens containing bacteria. Berlin, Germany:Deutsches Institut fur Normung;DIN DIN 58942-4: 2003, 2003