TABLE 3.
Identification and grouping of OPT and CPT organisms
| Group | Type of organism | Type of test in which organism appeared
|
||
|---|---|---|---|---|
| Both OPT and CPTa | OPT onlyb | CPT onlyc | ||
| I | Agents of aspergillosis and closely related hyalohyphomycosis | Aspergillus fumigatus (4%), A. flavus, A. niger | Penicillium spp., Aspergillus spp., A. glaucus gr., A. versicolor gr., A. terreus, A. ustus gr.0, Paecilomyces spp., P. variotii, A. nidulans | |
| II | Dermatophytes | Trichophyton tonsurans (4%), Epidermophyton floccosum, Microsporum canis, T. rubrum, T. mentagrophytes | Microsporum audouinii, M. gypseum, M. nanum, Trichophyton terrestre | Microsporum ferrugineum, M. persicolor0, Trichophyton soudanense, Philophora verrucosum0 |
| III | Agents of phaeohyphomycosis or hyalohyphomycosis | Chrysosporium spp., Cladosporium spp., Exophilia jeanselmei, Fusarium spp., Scopulariopsis spp., Sporothrix schenckii | Cladosporium carrionii, Exserohilum rostratum, Pseudallescheria boydii, Phialophora verrucosa, Scopulariopsis brumptii, Wangiella dermatiditis | Acremonium spp., Alternaria spp., Curvularia spp., Neurospora spp., Fonsecaea pedrosoi0, Scytalidium spp., Scedosporium apiospermum0, Scopulariopsis brevicaulis, Exserohilum bantiana |
| IV | All Candida species and closely related forms | Candida albicans (31%), C. parapsilosis (6%), C. tropicalis (9%), C. glabrata (11%), C. krusei, C. guilliermondii, C. lusitaniae, C. rugosa, C. lipolytica | Candida lambica, C. paratropicalis | Candida spp., C. famata, C. albicans and C. parapsilosis, C. humicola, C. kefyr |
| V | Miscellaneous yeast, basidomycetes, and ascomycetes | Cryptococcus neoformans (5%), Blastoschizomyces capitatus, C. albidus, Hansenula anomala, Trichosporon beigelii, Rhodotorula rubra, R. glutinis, Saccharomyces cerevisiae | Cryptococcus laurentii, Candida zeylanoides, Geotrichum candidum, Malassezia pachydermatis | Rhodotorula pilimanae, Geotrichumspp., Candida guilliermondii, Cryptococcus terreus0, C. uniguttulatus0 |
| VI | Miscellaneous mold and algae | Mucor spp., Nocardia asteroides, N. brasiliensis, Prototheca wickerhamii | Chaetomium spp., Cunninghamella spp., Nocardia otitidiscaviarum, P. zopfii, Streptomyces spp., Syncephalastrum spp., Sporobolomyces salmonicolor, Trichoderma spp., Trichothecium spp., Ulocladium spp. | Absidia spp.0, Auerobasidium pullulans0, Histoplasma capsulatum, Nocardia caviae, Rhizomucor spp.0, Rhizopus spp. |
a
Percentages of some organisms in the CPT samples are shown in parentheses to indicate the degree to which OPT organism selection mimics the frequency of recovery of these organisms from patient samples.
b
Organisms not observed among the CPT specimens were included in OPT as an educational tool for enhancing the identification capabilities of laboratories.
c
Some organisms are listed because they were identified only to the genus level by the laboratories. Superscript zeros indicate that the organism was misidentified in CPT data, suggesting that further education is needed.