SUMMARY: When several strains of were grown on Casman rabbit blood agar, individual morphological and cultural differences were noted between the Amies strains which formed pleomorphic and filamentous organisms and large, umbonate colonies, and the Dukes, Edmunds, King and U/L strains which were microscopically coccobacillary to bacillary, non-filamentous, and formed minute convex smooth colonies. Dukes, Edmunds, King and U/L strains required whole blood for maintenance while a whole blood derivative, e.g. peptic digest or Difco chocolate-yeastolate agar, was sufficient for the maintenance of the Amies strains. Serological studies by tube agglutination, direct, indirect and inhibition immunofluorescent methods showed that Dukes, Edmunds, King and U/L strains reacted in a homologous manner with antisera nos. 317, 394 and 4984. Amies strains did not react with these antisera. However, Amies strains cross-reacted with antiserum 180 , while the Dukes, Edmunds, King and U/L strains did not react with this antiserum.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error