RESUMO

SUMMARY Giardia duodenalis is an enteric parasite that has distinct genetic groups. Human infections are mainly caused by assemblages A and B, although sporadic infections by assemblages C and D have also been reported. Animals can be infected by a wide range of assemblages (A to H). The aim of this study is to identify the assemblages and sub-assemblages of G. duodenalis with zoonotic features in fecal samples of school-aged children, and in dogs that coexist in the same households in Lages, Santa Catarina, Brazil. Fecal samples of 91 children and 108 dogs were obtained and G. duodenalis cysts were detected in samples from 11 (12.08%) children and 10 (9.25%) dogs. DNA extracted from the 21 positive samples was analyzed by PCR-RFLP, using the gdh gene. Results showed the presence of sub-assemblages AI (2/11), AII (4/11), BIII (2/11), and BIV(3/11) among children and AI (5/10) and BIV(3/10) in dogs, with zoonotic characteristics, and the carnivore specific assemblage C (2/10). G. duodenalis was found to infect both children and dogs living in the same household, with the same sub-assemblage (BIV) indicating that pet dogs are a potential risk of transmission of G. duodenalis to humans.

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Cryptosporidium spp is a common intestinal pathogen of animals and humans. It may have an important economic impact on farms and cause potentially zoonotic infections. Fecal specimens were collected from 331 domestic animals (81 beef cattle, 50 sheep, 100 pigs and 100 dogs) and checked for the presence of Cryptosporidium oocysts by way of Ziehl Neelsen and auramine staining methods. An overall positivity rate of 7.5% (25/331) was found, with rates of 10% (10/100) among the dogs and 18.5% (15/81) among the beef cattle. The feces of sheep and pigs tested negative. In beef cattle, 15 and 12 positive samples were detected by the auramine and Ziehl Neelsen staining techniques, respectively, with no statistically significant difference between the two methods. In dogs, the same number of positive samples was found by both techniques.

No abstract

This study aims to report the incidence of Calodium hepaticum among dogs and cats, pets or stray animals, captured by the Zoonosis Control Center (CCZ) in Lages, Santa Catarina, Brazil. Fecal samples from 108 pet dogs and eight pet cats, and from 357 stray dogs and 97 stray cats, captured by CCZ, were analyzed within the period from July 2010 to November 2012. Coproparasitological exams were performed by techniques of sedimentation, centrifuge-flotation, and simple flotation. Among 465 fecal samples from dogs and 105 from cats, the overall spurious infections for C. hepaticum eggs were 1.05%. For dogs, this positivity was 0.43% and for cats it was 3.81%. The two positive dogs were stray and out of the four cats, three were stray and one was a pet. Although the occurrence of C. hepaticum eggs was low, these data reveal the existence of infected rodents, especially in public places, since, out of the six infected animals, five (83.33%) were stray. These results are discussed and analyzed with an emphasis on the risk to public health.

A criptococose é uma infecção fúngica oportunista comum, causada por leveduras capsuladas do gênero Cryptococcus, principalmente pelas espécies C. neoformans e C. gattii. O fungo é adquirido pela inalação de propágulos de origem ambiental ou mais raramente através de transplantes de órgãos em indivíduos imunocomprometidos. Os pombos domésticos (Columba livia) estão relacionados com a infecção, principalmente como reservatórios naturais do fungo, fato relevante devido a grande concentração destes animais em ambientes públicos, sobretudo em locais de grande circulação de pessoas. Para o isolamento e diagnóstico de Cryptococcus spp., foram analisadas 195 amostras de excretas de pombos de seis praças localizadas na região central da cidade de Lages, SC. Das amostras analisadas, 7,69% (15) foram positivas para a levedura capsulada. Como as amostras positivas tiveram origem em locais com maior concentração de pombos e fluxo de pessoas, sugere-se a criação de campanhas educativas visando a conscientização da população sobre o risco de contrair a criptococose e a importância de não alimentar os pombos em áreas de lazer, a principal estratégia no controle populacional dos pombos.

This study aimed to determine the prevalence of ecto and endoparasites of chicken colonial creation / hillbilly in Santa Catarina. Two hundred and fifty clinically healthy birds were contained and examined for the presence of ectoparasites. And, to evaluate hemoparasites blood samples made brachial vein and blood films 500 were collected and evaluated by methods Panotic Fast (250) and Giemsa (250), and 60 faecal samples of the patio soil were evaluated by the methods parasitological spontaneous sedimentation and centrifugal flotation in saturated solution of sucrose. No bird showed ectoparasites and blood parasites. Eggs were identified Capillaria spp. (48.3%), Ascaridia galli (21.7%), Hymenolepis spp. (16.7%), Heterakis spp. (8.3%), Choanotaenia spp. (6.7%), Raillietina spp. (3.3%), Syngamus trachea (3.3%) and oocysts of Eimeria spp. (20%). Most fecal samples from two properties had more than one parasite gender. The negativity of haemoprotozoans can be attributed to the large volume of rain throughout the study period, reflecting the low occurrence of vectors, mosquitoes and bloodsucking flies, vectors in the transmission.