The Penetration Ability of Tinea corporis (Ringworm) in Two and One-Half Hours

Overview

Objectives/Goals I am a wrestler, and in the past I have been infected with Tinea corporis (ringworm). The purpose of this experiment was to determine if ringworm could pentrate through a bandage in two and one-half hours. If a bandage successfully prevents the spread of ringworm, wrestlers can practice without fear of infecting practice partners. Methods/Materials Ringworm is considered potentially dangerous, therefore I used Aspergillus niger. I created four groups of five plates. The first group was Sterile Petri dishes, the second group was Potato dextrose agar, the third group was Potato dextrose agar with 10 mm2 of Aspergillus niger, and the forth group was Potato dextrose agar with 10 mm2 of Aspergillus niger and a bandage covering the Aspergillus niger. I let the plates sit for two and one-half hours then measured the amount of fungus on them using a microscope and caliper. Once I had my data, I ran an ANOVA test on it. For statistical reasons, I repeated this procedure thrice. Results The Aspergillus niger grew under the bandages and on the plates without a bandage; based on the ANOVA test there is at least a 14.99% chance that it will grow if I repeated the test. The Aspergillus niger did not grow through the bandages, therefore there is statistically a 0% chance it will grow through a bandage if I duplicated the test. Conclusions/Discussion Therefore, I concluded that Tinea corporis would grow in size under a bandage but not grow through the bandage, infecting a wrestler's practice partner.

Competition history

• CSEF 2009 Microbiology · Entry S1718

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