scholarly journals MOLECULAR TYPING OF Giardia duodenalis ISOLATES FROM NONHUMAN PRIMATES HOUSED IN A BRAZILIAN ZOO

Author(s):  
Erica Boarato David ◽  
Mariella Patti ◽  
Silvana Torossian Coradi ◽  
Teresa Cristina Goulart Oliveira-Sequeira ◽  
Paulo Eduardo Martins Ribolla ◽  
...  

Giardia infections in captive nonhuman primates (NHP) housed at a Brazilian zoo were investigated in order to address their zoonotic potential. Fresh fecal samples were collected from the floors of 22 enclosures where 47 primates of 18 different species were housed. The diagnosis of intestinal parasites after concentration by sedimentation and flotation methods revealed the following parasites and their frequencies: Giardia (18%); Entamoeba spp. (18%); Endolimax nana (4.5%); Iodamoeba spp. (4.5%); Oxyurid (4.5%) and Strongylid (4.5%). Genomic DNA extracted from all samples was processed by PCR methods in order to amplify fragments of gdh and tpi genes of Giardia. Amplicons were obtained from samples of Ateles belzebuth, Alouatta caraya, Alouatta fusca and Alouatta seniculus. Clear sequences were only obtained for the isolates from Ateles belzebuth (BA1), Alouatta fusca (BA2) and Alouatta caraya (BA3). According to the phenetic analyses of these sequences, all were classified as assemblage A. For the tpi gene, all three isolates were grouped into sub-assemblage AII (BA1, BA2 and BA3) whereas for the gdh gene, only BA3 was sub-assemblage AII, and the BA1 and BA2 were sub-assemblage AI. Considering the zoonotic potential of the assemblage A, and that the animals of the present study show no clinical signs of infection, the data obtained here stresses that regular coproparasitological surveys are necessary to implement preventive measures and safeguard the health of the captive animals, of their caretakers and of people visiting the zoological gardens.

Pathogens ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 198
Author(s):  
Aurora L. Ursache ◽  
Adriana Györke ◽  
Viorica Mircean ◽  
Mirabela O. Dumitrache ◽  
Andrei Răzvan Codea ◽  
...  

Intestinal parasites are involved in the health and wellbeing of cats and some of them, due to their zoonotic potential, represent a problem for public health. This study aimed to assess the prevalence of parasitic infections in cats with gastrointestinal signs. Fecal samples collected from 137 cats were analyzed by the flotation method using a sodium chloride saturated solution. The overall prevalence of intestinal parasites was 50.4%. Intestinal parasites were significantly (p < 0.0001) more common in cats with digestive clinical signs (66.7%) than in clinically healthy ones (19.2%). Toxocara cati (40.2%) was the most frequently identified intestinal parasite, followed by Cystoisospora spp. (10.2%), hookworms (3.7%), Taeniidae (2.2%), Giardia duodenalis (2.2%), and Toxoplasma gondii (0.7%). Toxocara cati (53.3%, p < 0.0001) and Cystoisospora spp. (15.6%, p < 0.001) were significantly more frequently diagnosed in cats with clinical signs. A lack of deworming in the last three months (OR: 15.9), outdoor access (OR: 13.8), the presence of digestive symptoms (OR: 5.4), and young age (OR: 4.2) were identified as risk factors for T. cati infection by logistic regression analysis. Regardless of age, gastrointestinal signs like vomiting, diarrhea, and inappetence were positively associated with T. cati.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Sergio Aurelio Zanzani ◽  
Alessia Libera Gazzonis ◽  
Paola Scarpa ◽  
Federica Berrilli ◽  
Maria Teresa Manfredi

Intestinal parasites of dogs and cats are cosmopolitan pathogens with zoonotic potential for humans. Our investigation considered their diffusion in dogs and cats from northern Italy areas, specifically the metropolitan area of Milan and two micropolitan areas of neighboring provinces. It included the study of the level of awareness in pet owners of the zoonotic potential from these parasites. A total of 409 fresh fecal samples were collected from household dogs and cats for copromicroscopic analysis and detection ofGiardia duodenaliscoproantigens. The assemblages ofGiardiawere also identified. A questionnaire about intestinal parasites biology and zoonotic potential was submitted to 185 pet owners. The overall prevalence of intestinal parasites resulted higher in cats (47.37%−60.42%) and dogs (57.41%−43.02%) from micropolitan areas than that from the metropolis of Milan (dogs:P=28.16%; cats:P=32.58%). The zoonotic parasites infecting pets under investigation wereT. canisandT. cati,T. vulpis, Ancylostomatidae, andG. duodenalisassemblage A. Only 49.19% of pet owners showed to be aware of the risks for human health from canine and feline intestinal parasites. Parasitological results in pets and awareness determination in their owners clearly highlight how the role of veterinarians is important in indicating correct and widespread behaviors to reduce risks of infection for pets and humans in urban areas.


2018 ◽  
Vol 46 ◽  
pp. 5
Author(s):  
Maylane Tavares Ferreira da Silva ◽  
Eric Carvalho Aquim ◽  
Tiago Paixão Ribeiro De Sousa ◽  
Naelson Railson de Sousa Gomes ◽  
Auan Rangel Oliveira De Vasconcelos ◽  
...  

Background: The animals of the genus Alouatta are popularly known as Bugios, barbados, roncadores and guaribas, being the neotropical primates better studied in the world. They originate in South America, with records in Argentina, Bolivia, Paraguay and Uruguay. Because of their migrations, many are found debilitated and taken to captivity until their rehabilitation and most cannot be reinserted in nature. They tend to live in extensive areas, having a low resistance against parasitic infections because of low exposure and when kept in captivity, the risks of these infections increase. Some diagnostic techniques can aid in the detection of parasites of zoo animals and can identify the parasitic fauna of these animals. The objective of this work was to investigate and report the presence of intestinal parasites in a female Bugio-preta (Alouatta caraya) captive of the Zoobotanical Park of the municipality of Teresina, Piauí, Brazil.Case: The animal presented a constipation signs before clinical signs of apathy, anorexia, diarrhea and weight loss, suggestive signs of parasitosis, Sterile papers were placed on the floor of the animal enclosure and collected fresh stools shortly after defecation, the feces were removed using gloves, stored in a capped containers, identified and taken to the Laboratory of Parasitology of the Department of Parasitology and Microbiology of the Federal University of Piauí, for further evaluation. The fecal samples were submitted to the techniques of spontaneous sedimentation (HPJ), centrifugation-flotation (Faust) and flotation method in hyper saturated sucrose solution (Willis-Mollay), obtaining slides that were analyzed under an optical microscope in the 10x and 40x objective, confirming the presence of ascarids and hookworms.Discussion: The results showed the presence of eggs of Ascaris sp. and Ancylostoma sp. in all of the analyzed techniques, thus maintaining an alert, since they are considered helminths of zoonotic character. The general state of the animal may have influenced considerably the result of mixed infection by helminths, since it had episodes of diarrhea and was skinny at the time of diagnosis. Diarrheal feces and slimming favor the encounter of mixed infection, since the parasites in large quantity can cause to their hosts a decrease in the absorption of nutrients and an intestinal peristalsis increase. Other works with primates also revealed the presence of parasites in animals, including protozoans. The collection moment and evaluation of the fecal samples of the Bugio coincided with the rainy period in the region. This fact can favor the increase of eggs and larvae of parasites in the environment and, consequently, can contaminate the animals. Regarding to sanitary management of zoos, areas full of plants and trees make it difficult to hygienize the enclosures and in these places is common the presence of other animals that can serve as carriers of pathogens. The available diagnostic great relevance to assess the degree of animal infection, the possibility of transmission and the sanitary conditions of the environment. It was concluded that the female Bugio of the Teresina Zoobotanical Park was parasitized by ascarids and hookworms and the techniques of parasitological exams performed represented great relevance for the early diagnosis and an appropriate treatment, being able to be used for the control of diseases parasites, mainly zoonoses.


Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2063
Author(s):  
Awad A. Shehata ◽  
Shereen Basiouni ◽  
Reinhard Sting ◽  
Valerij Akimkin ◽  
Marc Hoferer ◽  
...  

Poult enteritis and mortality syndrome (PEMS) is one of the most significant problem affecting turkeys and continues to cause severe economic losses worldwide. Although the specific causes of PEMS remains unknown, this syndrome might involve an interaction between several causative agents such as enteropathogenic viruses (coronaviruses, rotavirus, astroviruses and adenoviruses) and bacteria and protozoa. Non-infectious causes such as feed and management are also interconnected factors. However, it is difficult to determine the specific cause of enteric disorders under field conditions. Additionally, similarities of clinical signs and lesions hamper the accurate diagnosis. The purpose of the present review is to discuss in detail the main viral possible causative agents of PEMS and challenges in diagnosis and control.


2020 ◽  
Vol 9 (1) ◽  
pp. 54
Author(s):  
Salem Belkessa ◽  
Daniel Thomas-Lopez ◽  
Karim Houali ◽  
Farida Ghalmi ◽  
Christen Rune Stensvold

The molecular epidemiology of giardiasis in Africa remains unclear. A study was carried out across four hospitals in Algeria. A total of 119 fecal samples from 55 children, 37 adults, and 27 individuals of undetermined age, all scored positive for intestinal parasites by microscopy, and were screened by real-time PCR for Giardia. Molecular characterization of Giardia was performed by assemblage-specific PCR and PCR targeting the triose phosphate isomerase gene (tpi). Of the 119 samples, 80 (67%) were Giardia-positive by real-time PCR. For 48 moderately-highly real-time PCR-positive samples, tpi genotyping assigned 22 samples to Assemblage A and 26 to Assemblage B. Contrary to Assemblage A, Assemblage B exhibited substantial genetic diversity and allelic heterozygosity. Assemblage-specific PCR proved to be specific for discriminating Assemblage A or B but not as sensitive as tpi genotyping. We confirmed that real-time PCR is more sensitive than microscopy for detecting Giardia in stool samples and that robust amplification and sequencing of the tpi gene is feasible when moderate-to-strongly real-time PCR-positive samples are used. This study is one of the few performed in Africa providing genotyping data on Giardia infections in humans. Both assemblages A and B were commonly seen and not associated with specific sociodemographic data.


2011 ◽  
Vol 11 (8) ◽  
pp. 1049-1055 ◽  
Author(s):  
Relja Beck ◽  
Hein Sprong ◽  
Snjezana Lucinger ◽  
Edoardo Pozio ◽  
Simone M. Cacciò

Author(s):  
Marcelo Luiz Carvalho Gonçalves ◽  
Cassius Schnell ◽  
Luciana Sianto ◽  
Francoise Bouchet ◽  
Mathieu Le Bailly ◽  
...  

The identification of parasites in ancient human feces is compromised by differential preservation of identifiable parasite structures. However, protein molecules can survive the damage of the environment. It was possible to detected antigen of Entamoeba histolytica and Giardia duodenalis in historic and prehistoric human fecal remains using two enzyme immunoassay (ELISA) kits with monoclonal antibodies specific for E. histolytica and G. duodenalis, respectively. Specimens of desiccated feces and ancient latrine sediment from the New and the Old World were examined. The ELISA detected E. histolytica antigen in samples from Argentina, USA, France, Belgium, and Switzerland, dated to about 5300 years BP to the 19th Century AD. G. duodenalis antigen was detected in samples from USA, Belgium, and Germany, dated to about 1200 AD, 1600 AD, and 1700 AD. The detection of protozoan antigen using immunoassays is a reliable tool for the study of intestinal parasites in the past.


2017 ◽  
Vol 37 (11) ◽  
pp. 1327-1330
Author(s):  
Sabrina D.E. Campos ◽  
Camila S.C. Machado ◽  
Tatiana V.T. de Souza ◽  
Renan C. Cevarolli ◽  
Nádia R.P. Almosny

ABSTRACT: Populations of green-winged saltators, Saltator similis, are decreasing especially because of illegal trade and infectious diseases. We describe natural cases of an extraintestinal isosporoid coccidian in caged S. similis, and suggest the need of preventive measures in handling these birds. Nonspecific clinical signs were seen in all of them, however, intracytoplasmic Atoxoplasma sp. was found in peripheral blood, reinforcing the idea of systemic isosporosis. Leukocytosis with high number of heterophils and monocytes suggested that atoxoplasmosis in green-winged saltators can progress as an acute disease. The birds showed clinical improvement after treatment. Handling recommendations were proposed to upgrade hygienic conditions of the facilities. We concluded that nonspecific symptoms and an acute inflammatory process can be associated with atoxoplasmosis in young S. similis. We emphasize the importance of blood smear to detect merozoites.


2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Pejvak Khaki ◽  
Preena Bhalla ◽  
Ahmad Mir Fayaz ◽  
Sohiela Moradi Bidhendi ◽  
Majid Esmailzadeh ◽  
...  

Control and preventive measures for gonococcal infections are based on precise epidemiological characteristics ofN. gonorrhoeaeisolates. In the present study the potential utility of opa-typing and ribotyping for molecular epidemiological study of consecutive gonococcal strains was determined. Sixty gonococcal isolates were subjected to ribotyping with two restriction enzymes,AvaII andHincII, and opa-typing withTaqI andHpaII for epidemiological characterization of gonococcal population. Ribotyping withAvaII yielded 6 ribotype patterns while twelve RFLP patterns were observed withHincII. Opa-typing of the 60 isolates revealed a total 54 opa-types, which 48 were unique and 6 formed clusters. Fifty-two opa-types were observed withTaqI-digested PCR product while opa-typing withHpaII demonstrated 54 opa-types. The opa-types from isolates that were epidemiologically unrelated were distinct, whereas those from the sexual contacts were identical. The results showed that opa-typing is highly useful for characterizing gonococcal strains from sexual contacts and has more discriminatory than ribotyping that could differentiate between gonococci of the same ribotype. The technique even with a single restriction enzyme has a high level of discrimination (99.9%) between epidemiologically unrelated isolates. In conclusion, the molecular methods such as opa-typing and ribotyping can be used for epidemiological characterization of gonococcal strains.


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