Rodentborne fungal pathogens in wetland agroecosystem

Abstract

The past few decades have witnessed an overwhelming increase in the incidence of fungal infections, particularly in immunocompromised individuals. Consequently, zoonotic diseases, especially through rodents constitute a prominent group among the emerging diseases. Rodents are commensal to man and related health risks are common. Water rats (Rattus norvegicus) are typical to Vembanadu-Kol wetland agroecosystems, where they can act as a good carrier nexus for pathogens. The present study evaluates the carrier status of water rats with respect to fungal pathogens. A total of fifty two fungi covering eighteen families were isolated. Among the isolates, eight were dermaptophytes and Chrysosporium sp. (89.18%) was the frequent isolate. The source-wise analyses showed an increased isolation from ventral hair (67 isolates).Water rats of Vembanadu-Kol wetland agroecosystem are potent carrier of dermaptophytes and other opportunistic fungi, and strong carrier paths are existing too.

<b> Parasitic and fungal infections in synanthropic rodents in an area of urban expansion, Aracaju, Sergipe State, Brazil</b> - doi: 10.4025/actascibiolsci.v36i1.19760

“…(SIMPANYA, 2000). The frequency of Trichophyton in rodents collected in this study (3.6%) did not differ from the average occurrence for this fungus (4.1%) found in India by Thomas et al (2012) in Rattus norvegicus collected in a rural area. What draws attention, however, is that in our study the Rattus rattus specimens were collected at the peridomicile and thus represent an increased risk of transmission to the human inhabitants.…”

“…The results obtained in this study showed that the number of fungi present in the collected hosts was directly related to the body length of the rodent ( Figure 5). Kataranovski et al (2007) asserted that the body structure of rodents allows for the growth of infectious organisms, especially fungi, and thus, the zoonotic risk of these animals cannot be ignored in the development of emerging zoonotic diseases and fungal infections (THOMAS et al, 2012).…”

The Dispersal of Rodent-Borne Strains of Aphanoascus Keratinophilus and Chrysosporium Tropicum by Pellets of Predatory Birds

“…tropicum are common colonisers of rodent fur. Thomas et al (2012) have recently demonstrated that Chrysosporium accounted for nearly 90% of the biota of fungi colonising hair of Water Rats (Rattus norvegicus) inhabiting palm plantations in India. It seems that resistance to thermal conditions is one of the factors determining the survival of the fungal species under investigation in the digestive tract of predatory birds.…”

Gastrointestinal parasites in wild rodents in Chiloé Island-Chile

“…Out of 2277 extant rodent species worldwide, 217 have been identified as reservoirs for zoonoses, including viral (e.g., Hantavirus pulmonary syndrome), bacterial (e.g., leptospirosis), fungal (eg., Aspergillus sp. ), and parasitic infections (Suzuki et al, 2004;Thomas et al, 2012;Han et al, 2015;Fantozzi et al, 2018;Luna et al, 2020). In particular, rodents are hosts of a range of gastrointestinal parasites that include helminths such as Rodentolepis spp.…”