CAMPYLOBACTER SPP. EM ANIMAIS SILVESTRES

Campylobacter sp. is a widespread zoonotic multi-host pathogen that often causes gastroenteritis in humans. The birds are reservoirs of Campylobacter sp., which also occurs naturally in mammals and has already been isolated from surface and groundwater. Campylobacter sp. species readily colonize the gastrointestinal tract of domestic and wild animals, and although they rarely cause clinical disease in production animals, they can produce severe acute gastroenteritis in humans. This narrative literature review aimed to carry out a bibliographic survey on the isolation of this microorganism in wild animals. C. jejuni has been isolated from captive and diarrhea-free and healthy non-human primates, as well as from elephants, seagulls, vultures, and other wild birds. Wild geese and wild birds are a potential sources of Campylobacter sp. infection to in humans and other animals, and as geese are migratory animals, they can transfer pathogens over long distances. Potentially virulent strains of this bacteria are eliminated by the feces of crows. These animals are particularly relevant to the potential spread of pathogens because of their movement between urban and agricultural areas inhabited by humans. Healthy wild animals of different species may harbor Campylobacter, acting as agent carriers.Campylobacter sp. são patógenos multi-hospedeiros zoonóticos disseminados, que frequentemente causam gastroenterite em humanos. As aves são reservatórios de Campylobacter sp., que também ocorre naturalmente em mamíferos e já foi isolado de águas superficiais e subterrâneas. As espécies de Campylobacter colonizam prontamente o trato gastrointestinal de animais domésticos, silvestres e selvagens e, embora raramente causem doença clínica em animais de produção, podem produzir gastroenterite aguda grave em humanos. Assim, o objetivo desta revisão de literatura narrativa foi fazer um levantamento bibliográfico sobre o isolamento desse micro-organismo em animais silvestres. C. jejuni tem sido isolado de primatas não humanos cativos e livres acometidos por diarreia e saudáveis; e também de elefantes, gaivotas, abutres e outras aves silvestres. Gansos selvagens e aves silvestres são uma fonte potencial de infecção por Campylobacter sp. para humanos e outros animais, e, como os gansos são animais migratórios, eles são capazes de transferir patógenos por grandes distâncias. Cepas potencialmente virulentas dessa bactéria são eliminadas pelas fezes dos corvos. Estes animais são particularmente relevantes para a disseminação potencial de patógenos por causa de seu movimento entre áreas urbanas e agrícolas habitadas por humanos. Animais silvestres sadios, de diferentes espécies, podem albergar Campylobacter sp., agindo como veiculadores do patógeno

Pathogens of public health concern shared by domestic and wild animals in a pluriactive farm / Patógenos importantes em saúde pública compartilhados por animais domésticos e silvestres em propriedade pluriativa pluriactive farm

The objectives of this study were to identify the occurrence of pathogens of public health concern in wild and domestic animals within a pluriactive farm, to detect the presence of genes coding enterotoxins in Staphylococcus aureus isolates and to identify the occurrence of the same strain in different animals. Fecal samples of up to five specimens of each domestic and wild species were collected. Isolates were obtained, were realized the species identification/confirmation, detection of enterotoxigenic genes, the comparison of molecular profiles and were identified the Methicillin-resistant S. aureus (MRSA). Total percentage of samples from which some isolate was obtained was 7.9% (19/241). S aureus was present in 7.5% (12/160) of domestic animals and in 6.2% (5/81) of wild animals. MRSA was isolated from 3.7% (6/160) of domestic and from 4.9% (4/81) of wild animals. Yesrinia enterocolitica was isolated from 1.2% (1/81) of wild animals and Samonella from 0.6% (1/160) of domestic animals. 35.3% (6/17) of S. aureus isolates had one of the enterotoxigenic genes. Indistinguishable and closely related isolates were found in domestic and wild animals, which confirms that there is a circulation of strains between animals or at least indicates the presence a common source of infection between them.

Campylobacter coli in Swine Slaughtering Flowchart and Research of cdt Genes

Background: Campylobacter spp. are among the microorganisms most commonly associated with foodborne disease. Campylobacter spp. isolation from pigs during the slaughter and final products have been reported in several countries, including Brazil. However, very little is known about the sources of contamination in the slaughtering flowchart and how these microorganisms are spread in processing plants. Considering the possibility of the pigs carry Campylobacter spp. since the farm or its products are contaminated in the slaughterhouse, this study had as aim to track Campylobacter spp. in pig slaughtering flowchart to understand the behavior of these pathogens in the production line.Materials, Methods & Results: Forty animals of 10 lots, four from each lot, were followed during slaughter. Stool samples were collected from the floor of each enclosure where the pigs were housed on the farm and immediately after stunning on slaughterhouse. Samples from carcass surface were collected after removal of the animals from scrap machine, after evisceration and before the refrigeration chamber. It was also collected surface samples from jowls and samples from the scalding tank water before and after the passage of animals. The swabs containing samples were plated onto Columbia agar supplemented with activated charcoal, oxygen reduction solution and antibiotics supplement, and incubated at 42°C for 48 h under microaerobic conditions. The colonies which presented with a shiny and moist appearance were analyzed by Gram staining for identification of Campylobacter by morphology, and then tested for catalase and oxidase. The Campylobacter isolates were identified for species C. jejuni or C. coli by PCR. Bands profiles were determined by rep-PCR and used to compare the strains. Campylobacter was isolated from 19 (9.5%) of the 200 pig samples analyzed, seven (36.8%) of the rectum, seven (36.8%) after evisceration and five (26.3%) before the refrigeration chamber. Campylobacter was not isolated from jowls and from scalding tank water. All isolates were C. coliand cdtnegative.Persistence of strains originating from the farm and cross contaminations during the slaughtering flowchart was identified by the analysis of the bands profiles obtained by rep-PCR.Discussion: C. coli was the species of Campylobacter present in the swine intestinal tract and in the swine slaughterhouse. The animals, once contaminated, can carry the microorganism during the stages of the slaughtering flowchart. The farm where the animals came from is an important source of contamination during processing, however cross contamination also plays a relevant role. The evisceration was considered the most critical stage, due to the greater number of isolates obtained after this procedure, what emphasize the importance of the hygienic-sanitary management in this stage. Campylobacter spp. can survive, despite not being able to multiply, in foods at refrigeration temperatures (-1 to 5°C) for one to three weeks. Therefore, the high percentage of isolates obtained from the carcass before the refrigeration chamber may represent a problem, since the contamination of the carcasses that enter in this sector can be maintained until the food reaches the consumer. There was no similarity between strains isolated from different lots, indicating that there were no persistence of strains both in the farm and in the slaughterhouse

Campylobacter coli in Swine Slaughtering Flowchart and Research of cdt Genes

Background: Campylobacter spp. are among the microorganisms most commonly associated with foodborne disease. Campylobacter spp. isolation from pigs during the slaughter and final products have been reported in several countries, including Brazil. However, very little is known about the sources of contamination in the slaughtering flowchart and how these microorganisms are spread in processing plants. Considering the possibility of the pigs carry Campylobacter spp. since the farm or its products are contaminated in the slaughterhouse, this study had as aim to track Campylobacter spp. in pig slaughtering flowchart to understand the behavior of these pathogens in the production line.Materials, Methods & Results: Forty animals of 10 lots, four from each lot, were followed during slaughter. Stool samples were collected from the floor of each enclosure where the pigs were housed on the farm and immediately after stunning on slaughterhouse. Samples from carcass surface were collected after removal of the animals from scrap machine, after evisceration and before the refrigeration chamber. It was also collected surface samples from jowls and samples from the scalding tank water before and after the passage of animals. The swabs containing samples were plated onto Columbia agar supplemented with activated charcoal, oxygen reduction solution and antibiotics supplement, and incubated at 42°C for 48 h under microaerobic conditions. The colonies which presented with a shiny and moist appearance were analyzed by Gram staining for identification of Campylobacter by morphology, and then tested for catalase and oxidase. The Campylobacter isolates were identified for species C. jejuni or C. coli by PCR. Bands profiles were determined by rep-PCR and used to compare the strains. Campylobacter was isolated from 19 (9.5%) of the 200 pig samples analyzed, seven (36.8%) of the rectum, seven (36.8%) after evisceration and five (26.3%) before the refrigeration chamber. Campylobacter was not isolated from jowls and from scalding tank water. All isolates were C. coliand cdtnegative.Persistence of strains originating from the farm and cross contaminations during the slaughtering flowchart was identified by the analysis of the bands profiles obtained by rep-PCR.Discussion: C. coli was the species of Campylobacter present in the swine intestinal tract and in the swine slaughterhouse. The animals, once contaminated, can carry the microorganism during the stages of the slaughtering flowchart. The farm where the animals came from is an important source of contamination during processing, however cross contamination also plays a relevant role. The evisceration was considered the most critical stage, due to the greater number of isolates obtained after this procedure, what emphasize the importance of the hygienic-sanitary management in this stage. Campylobacter spp. can survive, despite not being able to multiply, in foods at refrigeration temperatures (-1 to 5°C) for one to three weeks. Therefore, the high percentage of isolates obtained from the carcass before the refrigeration chamber may represent a problem, since the contamination of the carcasses that enter in this sector can be maintained until the food reaches the consumer. There was no similarity between strains isolated from different lots, indicating that there were no persistence of strains both in the farm and in the slaughterhouse

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data