BACKGROUND & OBJECTIVE Kolkata and its suburbs in eastern India are known to be endemic for typhoid fever. The objective of this study was to determine phage types, biotypes and antimicrobial resistance patterns of Salmonella enterica serotype Typhi isolated during the period 2003-2005 from a prospective surveillance for typhoid fever in two urban slums in Kolkata. METHODS A total of 195 Salm...

The aim of this study was to determine the capsular types of Haemophilus influenzae isolated from clinical specimens by slide agglutination serotyping (SAST) and PCR capsule typing methods. All the isolates were biotyped and their antibiotic resistance patterns also determined. Thirteen isolates of serotype b, 2 of serotype e, 4 of serotype f, and 19 nontypeable (NT) isolates were identified by...

Salmonella typhimurium strains from natural sources either ferment or do not ferment meso-inositol in peptone water in 24 hr at 37 C. Ninety-five percent of the strains that are designated inositol-nonfermenting on the basis of their phenotype at 37 C ferment inositol when incubated at 25 C. Two classes of temperature-sensitive mutants were detected among the 712 strains of S. typhimurium exami...

Enzyme profiling was investigated as a means of recognizing biotypes and individual strains of Ajellomyces dermatitidis (anamorph, Blastomyces dermatitidis). Eighteen North American and 2 African representatives were tested with the Yeast-IDENT enzymatic activity profiling system (Analytab Products, Plainview, N.Y.). Significant variation was found between isolates, particularly in beta-galacto...

BACKGROUND Pseudomonas aeruginosa is a gram-negative bacterium that is ubiquitously present in the aerobic biosphere. As an antibiotic-resistant facultative pathogen, it is a major cause of hospital-acquired infections. Its rapid and accurate identification is crucial in clinical and therapeutic environments. METHODS In a large-scale MALDI-TOF mass spectrometry-based screen of the Harvard tra...

Aborted sheep foetuses were collected during the lambing seasons of 2004 to 2006. B. melitensis was isolated from 25 (29.76%) of 84 lungs and stomach contents. Based on the biochemical tests and agglutination test with monospecific A and M antisera, the isolates were determined as B. melitensis biotype 3. The isolation of the B. melitensis from aborted sheep foetuses may show the importance of ...