[Virulence of Candida dubliniensis in comparison with Candida albicans using an experimental model of mouse oral candiddiasis].

Certain species of Candida are known as opportunistic fungal pathogens and Candida albicans has especially been isolated oral candidiasis patients at high frequency as a result of its strong pathogenicity. Recently C. dubliniensis is isolated mainly from immunocompromised patients, but is also detected from healthy persons.

Diversity of laccase among Cryptococcus neoformans serotypes.

The pathogenic yeast C. neoformans is classified into three varieties with five serotypes; var. grubii (serotype A), var.

Resistogram typing of oral Candida albicans isolates from normal subjects in three successive trials.

Sixty-six oral strains of Candida albicans, which had been consecutively isolated from 22 normal, young females in three isolation trials at intervals of one to three weeks, were biotyped by their susceptibility to boric acid, cetrimide, silver nitrate, sodium periodate and sodium selenite. The 66 isolates were grouped into 13 resistogram types. An identical biotype strain was found three times and twice in seven and six each of the 22 subjects in the three isolation trials, respectively.

Serotype identification of Cryptococcus neoformans by multiplex PCR.

The pathogenic yeast Cryptococcus neoformans is traditionally classified into three varieties with five serotypes: var. grubii (serotype A), var. neoformans (serotype D), var.

Extracellular enzymatic activities in Cryptococcus neoformans strains isolated from AIDS patients in different countries.

Three hundred and ten Cryptococcus neoformans strains isolated from AIDS patients in five different countries (151 from Brazil, 23 from Italy, 28 from Spain, 104 from Thailand and four from Turkey) were tested by the API-ZYM kit to detect their extracellular enzymatic activity. The enzymes esterase (C4) (no 3), esterase lipase (C8) (no 4), leucine arylamidase (no 6) and acid phosphatase (no 11) were commonly positive in most of the strains (more than 95%). These enzymes could be considered a useful tool not only for C.