The most frequent pathogens encountered in juvenile periodontitis were different from what has been previously documented by other authors. Antimicrobial treatment of juvenile periodontitis should be based on the result obtained from microbiological investigations.

This first report of molecular characterization and epidemiology of ESBL subtypes in E coli and K pneumoniae isolates in Trinidad and Tobago shows that the CTX-M, mainly phylogenetically group 1 type, was most predominant. Most ESBL producing isolates were still susceptible to carbapenems and aminoglycosides and their spread appears to be polyclonal and clonally unrelated.

Conventional and molecular microbiology laboratory tests were evaluated to determine the most cost effective, rapid and specific method for detecting methicillin resistance in clinical isolates of S aureus.

Molecular epidemiological studies of Methicillin resistant coagulase-negative Staphylococci provide important information on its spread in healthcare facilities and the clinical significance in individual patients.

This report is on the prevalence and significance of coagulase negative Staphylococci isolated from blood cultures of patients seen at the University Hospital of the West Indies, Kingston, Jamaica, over a six month period.

Several immunological assays can be used to investigate the reactivity of immunoglobulin binding protein (IBP) to immunoglobulins from various avian and mammalian species. The results of these assays suggest that IBP can be used for the detection of immunoglobulin and this is important for the diagnosis of infectious diseases in animal and bird populations and in the purification of immunoglobulins.