Potentially pathogenic yeasts from soil of children’s recreational areas in the city of Łódź (Poland)

Abstract

Objectives: Yeasts may become potential human and animal pathogens, particularly for individuals with a depressed immune system. Their presence in the environment, especially in soil, may favour their spread into human ontocenoses. Materials and Methods: Eighty-four soil samples obtained from 21 children's recreational sites in Łódź in autumn 2010 and spring 2011 were evaluated. The yeasts were isolated by classical microbiological methods and identified on the basis of morphological and biochemical features. Results: The fungi were found in 73.8% and in 69.0% of the examined samples collected in autumn and spring, respectively. Among 97 isolates of yeasts, the species potentially pathogenic to humans and animals were Candida colliculosa, C.

Diversity, in-vitro virulence traits and antifungal susceptibility pattern of gastrointestinal yeast flora of healthy poultry, Gallus gallus domesticus

“…High fungal burden in the gut microbiota of the poultry in our study suggests greater chance of dissemination of the gut flora to other poultries, human beings and their environments [8, 46]. This proposition is substantiated by other studies [7–9]. …”

“…Our study supports the hypothesis that poultry birds could be potential reservoirs of virulent and drug-resistant yeasts. Based on our and other reports [2, 3, 5, 8, 9, 42–45] we propose further studies to evaluate in-vivo virulence and clonal similarities between poultry and human isolates. Such studies will determine the potential of poultry yeasts to migrate to humans and vice versa .…”

“…Psittacine birds as the source for dissemination of Trichosporon, Candida and several other yeasts to the environment and man was documented by Brilhante RS, et al [8] who showed that these birds harboured potentially pathogenic yeasts throughout their gastrointestinal tract and in stool. Environmental pollution due to Candida, Cryptococcus, Geotrichum, Rhodotorula and Trichosporon from avian sources were in the recent past reported by Wojcik and co-workers [9], who were of the view that the presence of such organisms in the environment may pose a health risk to humans. Over and above, detection of multidrug resistant yeasts colonising the gastrointestinal tract (GIT) of synanthropic birds was of concern because these birds might be the reservoirs for transmission of drug resistant yeast infections to humans and such infections could be much severe in nature having greater potential to disseminate [7, 8].…”

Sandpits as a reservoir of potentially pathogenic fungi for children

“…Isolation and identification of fungi. Isolation and identification of the fungi were performed as described in a previous study [6]. Fungal colonies grown in the Dichloran Rose Bengal Chloramphenicol (DRBC) Agar (Merck) were counted after 5 days of incubation, checked under a microscope and transferred onto Sabouraud Dextrose Agar to obtain the axenic cultural growth, and also onto Potato Dextrose Agar in the case of filamentous fungi.…”

Diversity and abundance of human‐pathogenic fungi associated with pigeon faeces in urban environments

“…Although culture-independent, high-throughput sequencing approaches are extremely sensitive for detection of rare or uncultur- Guz, 2011;Lo Cascio et al, 2007;Mancianti, Nardoni, & Ceccherelli, 2002;Mendes et al, 2014;Wojcik, Kurnatowski, & Blaszkowska, 2013), have been isolated from pigeon faeces in only two studies, both conducted in Seoul (Chae et al, 2012;Jang et al, 2011). Whether this represents simple sampling bias or specialization of these species in Seoul requires further investigation.…”