Of 55 cockroaches caught, 49 (89.09%) were found to be carriers of pathogenic fungi. Based on morphological tests, fungal microorganisms isolated from the external and internal surfaces of cockroaches were categorized into eight groups as follows: molds including Aspergillus niger, Penicillium, Mucor, and Rhizopus, as well as yeast including Pichia kudriavzevii, Candida glabrata, Pichia kluyveri, and Candida viswanathii (Table 1). The most prevalent significant yeast and mold identified were P. kudriavzevii and A. niger. Statistically, no significant difference was observed in the transport rate and species of fungi.
Prevalence of fungi grouped by sites of infestation and by sexes of the P. americana
Fungus . | External surface . | Internal surface . | Male . | Female . | Total . |
---|---|---|---|---|---|
Aspergillus niger | 11 (20) | 11 (20) | 15 (27.27) | 7 (12.72) | 22 (40) |
Penicillium italicum | 3 (5.45) | 1 (1.81) | 1 (1.81) | 3 (5.45) | 4 (7.27) |
Mucor plumbeus | 3 (5.45) | 0.00 | 1 (1.81) | 2 (3.63) | 3 (5.45) |
Rhizopus oryzae | 2 (3.63) | 0.00 | 1 (1.81) | 1 (1.81) | 2 (3.63) |
Pichia kudriavzevii | 9 (16.36) | 14 (25.45) | 12 (21.81) | 11 (20.00) | 23 (41.81) |
Candida glabrata | 7 (12.72) | 10 (18.18) | 8 (14.54) | 9 (16.36) | 17 (30.90) |
Pichia kluyveri | 5 (9.09) | 9 (16.36) | 4 (7.27) | 10 (18.18) | 14 (25.45) |
Candida viswanathii | 1 (1.81) | 7 (12.72) | 5 (9.09) | 3 (5.45) | 8 (14.54) |
Fungus . | External surface . | Internal surface . | Male . | Female . | Total . |
---|---|---|---|---|---|
Aspergillus niger | 11 (20) | 11 (20) | 15 (27.27) | 7 (12.72) | 22 (40) |
Penicillium italicum | 3 (5.45) | 1 (1.81) | 1 (1.81) | 3 (5.45) | 4 (7.27) |
Mucor plumbeus | 3 (5.45) | 0.00 | 1 (1.81) | 2 (3.63) | 3 (5.45) |
Rhizopus oryzae | 2 (3.63) | 0.00 | 1 (1.81) | 1 (1.81) | 2 (3.63) |
Pichia kudriavzevii | 9 (16.36) | 14 (25.45) | 12 (21.81) | 11 (20.00) | 23 (41.81) |
Candida glabrata | 7 (12.72) | 10 (18.18) | 8 (14.54) | 9 (16.36) | 17 (30.90) |
Pichia kluyveri | 5 (9.09) | 9 (16.36) | 4 (7.27) | 10 (18.18) | 14 (25.45) |
Candida viswanathii | 1 (1.81) | 7 (12.72) | 5 (9.09) | 3 (5.45) | 8 (14.54) |