A method and system for rapidly detecting Candida on the skin of a host, such as an infant with diaper rash, is provided. The method includes contacting a dermal sample with a colorant that exhibits a certain spectral response (e.g., color change) in the presence of Candida. For example, the coloran
A method and system for rapidly detecting Candida on the skin of a host, such as an infant with diaper rash, is provided. The method includes contacting a dermal sample with a colorant that exhibits a certain spectral response (e.g., color change) in the presence of Candida. For example, the colorant may change from a first color to a second color, from colorless to a color, or from a color to colorless. The colorant is typically capable of differentiating between Candida (e.g., Candida albicans) and other microorganisms commonly associated with diaper rash, such as S. aureus and E. coli. Thus, when a dermal sample is placed into contact with the colorant, the color change may simply be observed to determine whether the infection is caused by Candida. If the color change occurs to a certain extent (e.g., from yellow to bright red), it may be determined that the test sample contains Candida. Likewise, if a color change occurs to a lesser extent (e.g., from yellow to faint orange) or not at all, it may be determined that the dermal sample contains other microorganisms (e.g., S. aureus or E. coli), no infection is present, or that the infection is simply due to other causes. Regardless, it will become readily apparent whether or not treatment for Candida is needed.
대표청구항▼
1. A wipe for detecting a secondary infection associated with diaper rash, the wipe comprising a phthalein compound that produces a first spectral response in the presence of Candida albicans, a second spectral response in the presence of Staphylococcus aureus, and a third spectral response in the p
1. A wipe for detecting a secondary infection associated with diaper rash, the wipe comprising a phthalein compound that produces a first spectral response in the presence of Candida albicans, a second spectral response in the presence of Staphylococcus aureus, and a third spectral response in the presence of Escherichia coil, wherein the first spectral response is visually distinctive from the second and third spectral responses, wherein the wipe contains a nonwoven web and wherein the nonwoven web contains absorbent fibers, synthetic thermoplastic fibers, or a combination thereof. 2. The wipe of claim 1, wherein the phthalein compound undergoes a color change at a pH of about 6.6. 3. The wipe of claim 1, wherein the phthalein compound is Phenol Red. 4. The wipe of claim 1, wherein the first spectral response is produced at a Candida albicans concentration of about 1×103 or more colony forming units per milliliter. 5. The wipe of claim 1, wherein the first spectral response is produced at a Candida albicans concentration of about 1×106 or more colony forming units per milliliter. 6. The wipe of claim 1, wherein the wipe contains a wet wipe solution. 7. The wipe of claim 1, wherein the second spectral response is a color that is substantially the same as the color of the phthalein compound prior to contact with Staphylococcus aureus. 8. The wipe of claim 1, wherein the third spectral response is a color that is substantially the same as the color of the phthalein compound prior to contact with Escherichia coll. 9. The wipe of claim 1, wherein the phthalein compound is Phenol Red, Chlorophenol Red, Metacresol Purple, Cresol Red, Pyrocatecol Violet, Xylenol Blue, Xylenol Orange, Mordant Blue 3,3,4,5,6-tetrabromophenolsulfonephthalein, Bromoxylenol Blue, Bromophenol Blue, Bromochiorophenol Blue, Bromocresol Purple, Bromocresol Green, Bromothymol Blue, Thymol Blue, Bromocresol Purple, thymolphthalein, or a combination thereof.
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