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Table. 2.

Table. 2.

Number of yeast cells/mL of the 0.5 and 2.5 McFarland suspensions of four common Candida species

Species Inoculum* Number of cells ( × 106 CFU/mL)

Mean ± SD Range
C. albicans Standard 5.2 ± 0.9 3.8–6.9
Large 26.5 ± 4.3 20.3–34.7
C. glabrata Standard 6.1 ± 1.1 4.3–8.3
Large 31.2 ± 4.8 23.3–39.0
C. parapsilosis Standard 3.4 ± 0.6 2.5–4.2
Large 17.0 ± 2.5 13.1–20.7
C. tropicalis Standard 2.3 ± 1.0 1.5–4.7
Large 13.3 ± 5.6 8.5–26.8
Total Standard 4.3 ± 1.8 1.5–8.3
Large 22.0 ± 8.4 8.5–39.0

*Colony counting was performed with the use of two cell suspensions (Mc-Farland 0.5, standard inoculum; and 2.5, large inoculum). Quantification was performed using a Neubauer chamber. Mean values of 10 isolates of each species are presented.

Ann Lab Med 2021;41:559~567 https://doi.org/10.3343/alm.2021.41.6.559

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