Fungal agents in different anatomical sites in Public Health Services in Cuiabá, state of Mato Grosso, Brazil

Araújo, Sebastião Martins de; Fontes, Cor Jésus Fernandes; Júnior, Diniz Pereira Leite; Hahn, Rosane Christine

doi:10.1590/s0036-46652012000100002

Cited by 10 publications

(13 citation statements)

References 34 publications

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“…This neglected tropical disease (NTD) has shown a 30-fold increase in global incidence over the past 50 years, including its severe form, dengue haemorrhagic fever 3 and prospective studies have already predicted a dramatic increase of dengue in the following 30 years 4 . The constant increase of dengue risk and dengue epidemics has been the target of a number of studies 5 , 6 but dengue transmission dynamics can be highly heterogeneous due to the complex interactions among virus serotypes, vector, and host.…”

Section: Introductionmentioning

confidence: 99%

ENSO-driven climate variability promotes periodic major outbreaks of dengue in Venezuela

Vincenti-González

Tami

Lizarazo

et al. 2018

Sci Rep

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Dengue is a mosquito-borne viral disease of global impact. In Venezuela, dengue has emerged as one of the most important public health problems of urban areas with frequent epidemics since 2001. The long-term pattern of this disease has involved not only a general upward trend in cases but also a dramatic increase in the size and frequency of epidemic outbreaks. By assuming that climate variability has a relevant influence on these changes in time, we quantified the periodicity of dengue incidence in time-series of data from two northern regions of Venezuela. Disease cycles of 1 and 3–4 years (p < 0.05) were detected. We determined that dengue cycles corresponded with local climate and the El Niño Southern Oscillation (ENSO) variation at both seasonal and inter-annual scales (every 2–3 years). Dengue incidence peaks were more prevalent during the warmer and dryer years of El Niño confirming that ENSO is a regional climatic driver of such long-term periodicity through local changes in temperature and rainfall. Our findings support the evidence of the effect of climate on dengue dynamics and advocate the incorporation of climate information in the surveillance and prediction of this arboviral disease in Venezuela.

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Section: Introductionmentioning

confidence: 99%

ENSO-driven climate variability promotes periodic major outbreaks of dengue in Venezuela

Vincenti-González

Tami

Lizarazo

et al. 2018

Sci Rep

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“…In dermatology outpatient clinics, principally in tropical countries, cases of tinea (cutaneous/skin mycoses) and other superficial fungal infections observed daily with definitive diagnoses can be detected on the skin, in hair, on the nails, in periungual folds, in the mucosa, and so forth [1]. It is difficult to outline their exact epidemiological profile as these are not diseases requiring compulsory notifications [2]. Several factors affect the higher incidence of superficial and cutaneous mycoses, including bioclimatic conditions favorable to the development of fungi in saprophytic life, promiscuity, sweating, prolonged contact with pets, and contaminated water from swimming pools and surrounding risk areas [1].…”

Section: Introductionmentioning

confidence: 99%

Mycological Pattern of Dermatomycoses in a Tertiary Care Hospital

Kaur

Sardana

Khan

2015

Journal of Tropical Medicine

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Background. Dermatomycoses are not diseases requiring compulsory notifications; rather they cause cosmetic defacements. Indian subcontinent with a varied topography is favorable for various fungal infections. Objective. To look for the epidemiological and mycological profile of superficial mycoses in North India. Methods. Three hundred and fifty-one clinical samples of skin, hair, and nail were examined to find the fungal etiology of the dermatomycoses. Results. Dermatomycoses were seen in 215/351 (61.2%) of cases. Most common isolates obtained were nondermatophyte molds (NDMs) (36.1%), followed by dermatophytes (13.8%) and yeasts (8.6%). Aspergillus niger (9%) was the most common mold. Trichophyton rubrum (4.6%) was the most common dermatophyte isolated, while amongst the yeasts Non-albicans Candida (NAC) species were more common (6%). Many other NDMs like Syncephalastrum spp., Cunninghamella spp., Rhodotorula spp., A. terreus, Scytalidium spp. and Scopulariopsis spp. were also isolated. Conclusion. Our study reflects an increasing role of NDMs (thought to be normal laboratory or environmental contaminants) as a causative agent of dermatomycoses, replacing the dermatophytes. Clinician's awareness of the demographic profile of the population involved along with more studies on dermatomycoses can help in understanding the etiological profile in area, leading to prevention of disease occurrence and cosmetic disfigurement.

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“…No Brasil, o status de carreadores subclínicos de dermatófitos já foi detectado em gatos domésticos [15,20], selvagens [3,5], e naqueles mantidos em abrigos [18]. Na área médica, o potencial zoonótico dos dermatófitos foi demonstrado em casos de humanos diagnosticados com dermatofitose e o contato com os pets no domicílio [1,2,7,10,38], onde os gatos constituem a principal fonte de contaminação.…”

Section: Discussionunclassified

Dermatophytes in Cats without Dermatopathies in the Metropolitan Area of Florianópolis, Brazil

Fraga

Spanamberg

Ferreiro

et al. 2017

Acta Scientiae. Vet.

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Background: Dermatophytes are infectious agents responsible for dermatophytosis, an important worldwide zoonosis. Cats are considered potential hosts and reservoir of these fungi, especially Microsporum canis. The prevalence in cats without dermatopathies varies according to the region, climate and animal husbandry. The aim of this study was to estimate the frequency of dermatophytes in cats without clinical signs of dermatopathy in the Metropolitan Area of Florianópolis, situated in the coast of Southern Brazil.Materials, Methods & Results: A total of 198 samples were obtained from cats without dermatopathies domiciled in the metropolitan area of Florianópolis. The collections were made through vigorous hair brushing throughout the body of the animal, using a sterile toothbrush. Mycological culture was performed onto Sabouraud Agar Chloramphenicol-Cyclohexamide (SCC), and incubated at 25-27°C for 21-28 days. The diagnosis was based on the macro and micromorphological characteristics of the isolated dermatophyte. One hundred and ten samples (55.6%) were collected in veterinary clinics and 88 (44.4%) in multiple household cats (average 11). The frequency of dermatophytes corresponded to 3.0% (6/198). Only the genus Microsporum was observed with predominance of M. canis (66.7%), followed by M. gypseum (33.3%). Saprotrophic fungi were observed in 94.4% of the cultures and 5.6% of the samples did not occurred fungal growth. Most of the isolates were obtained from adult cats (66.7%), females (83.3%) and with long hair (5.4%) in comparison to short hair samples (2.1%). Thirty percent of the cats (59/198) had been tested for retroviruses, and, among them, 27.0% were positive (22% FeLV and 5% FIV). M. gypseum was isolated from one feline FeLV positive. Various saprotrophic species were isolated from multiple household cats.Discussion: Dermatophytosis is considered as the most common occupational zoonosis among veterinarians, and it is recognized as a biological risk associated to the direct contact with cats. There are reports of regional outbreaks in Brazil where the pets were indicated as sources of dermatophytes to humans in the domestic environment. The frequency of dermatophytes observed in this study (3.0%) was lower than shown in others papers. Microsporum canis is commonly isolated from cats in hot weather regions and crowded living facilities; once introduced in to the creation on a cattery it is difficult to be eliminated. There is evidence of a higher occurrence of M. canis in cats FIV positive than seronegative ones. Dermatophytes were isolated from cats in contact with other cats (5/165). However, multiple household cats had no positive cultures and this outcome can be associated to high contamination by saprotrophic fungi. For diagnosis of dermatophytosis, mycological culture is indicated as the most efficient and easy to perform method, but it is necessary to be aware of false negative results, since it can occur in situations of intense contamination. Thus, it is advisable to prophylactically perform a clinical examination as a routine and also laboratory analyses in each cat before introducing it to a new environment.

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Fungal agents in different anatomical sites in Public Health Services in Cuiabá, state of Mato Grosso, Brazil

Cited by 10 publications

References 34 publications

ENSO-driven climate variability promotes periodic major outbreaks of dengue in Venezuela

ENSO-driven climate variability promotes periodic major outbreaks of dengue in Venezuela

Mycological Pattern of Dermatomycoses in a Tertiary Care Hospital

Dermatophytes in Cats without Dermatopathies in the Metropolitan Area of Florianópolis, Brazil

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