This study aimed to evaluate the impact of dental caries treatment on oral health-related quality of life (OHRQoL) among schoolchildren and the responsiveness of the Child Perceptions Questionnaire (CPQ8-10 ) instrument. Brazilian schoolchildren, 8-10 yr of age, were randomly selected and assigned to two groups--dental caries treatment (DCT) and caries-free (CF)--according to their caries experience [decayed, missing, or filled primary teeth (dmft) and decayed, missing or filled secondary teeth (DMFT) values of ≥ 0]. The CPQ8-10 instrument was administered at baseline and at 4 wk of follow-up (i.e. 4 wk after completion of dental treatment). In the DCT group, increases in CPQ8-10 scores were observed between the baseline and follow-up results. However, longitudinal evaluation of the CF group demonstrated no statistically significant difference in CPQ8-10 scores. Responsiveness of the CPQ8-10 instrument (magnitude of change in CPQ8-10 scores) in the DCT group was greater (effect size >0.7) than in the CF group. The findings of this study show that dental caries treatment has an important impact on OHRQoL of children. The CPQ8-10 was considered an acceptable instrument for longitudinal measurement of changes in OHRQoL.

Eimeria infections are common in the sheep industry worldwide. Lambs are more susceptible to coccidiosis, especially in stressful conditions, being infected by different species of the parasite. Eimeria crandallis and Eimeria ovinoidalis are considered the most pathogenic, causing reduced growth, dehydration, anorexia, and death. In this study, the frequency of Eimeria species was evaluated in lambs from the southern region of the Rio Grande do Sul state, Brazil. Fecal samples from 248 lambs, from 19 farms, were tested for the presence of oocysts. The positive samples were re-examined and the sporulated oocysts analyzed morphometrically to identify the presence of Eimeria species. In 100% of the evaluated farms, there were animals positive for the protozoan. The frequency of Eimeria species was: E. ovinoidalis (94.74%), E. crandallis (89.47%), E. granulosa (78.95%), E. parva (68.42%), E. ahsata (63.13%), E. punctata (42.11%), E. bakuensis (36.84%), E. faurei (10.53%), and E. pallida (5.26%). Mixed infection was found in 94.74% of the samples. This research describes, for the first time, the occurrence of E. crandallis and E. ovinoidalis infecting lambs in the study area. The wide distribution of this protozoan and the high frequency of pathogenic species show the importance and potential damage of sheep coccidiosis in herds from Rio Grande do Sul.

Este estudo aborda diversos aspectos sobre a Eimeriose, uma doença parasitária disseminada, economicamente relevante e, em alguns aspectos, desafiadora. A eimeriose é causada por protozoários coccídios do gênero Eimeria, podendo se manifestar de maneira clínica ou subclínica. Cordeiros e bezerros são mais suscetíveis, especialmente em condições estressantes, sendo infectados por diferentes espécies do parasito. Nos ovinos, sabe-se que Eimeriacrandallis e Eimeriaovinoidalis são as mais patogênicas, causando subdesenvolvimento de cordeiros, desidratação, anorexia e morte. EimeriazuerniieEimeria bovis, estão associadas à ocorrência de diarreia aquosa e/ou hemorrágica, perda de peso e anorexia em bezerros. O diagnóstico deve incluir os dados clínicos, exames coproparasitológicos, necropsia e avaliação epidemiológica da propriedade. Higienização das instalações, nutrição adequada e uso de drogas anticoccidianas são os principais métodos de profilaxia e controle frente ao parasito.

O carrapato Amblyomma aureolatum tem extrema importância em saúde pública, sendo considerado, depois do A. cajennense, o principal transmissor de Rickettsia rickettsii, agente causador da Febre Maculosa Brasileira. O presente estudo teve como objetivo relatar o caso de parasitismo por A. aureolatum em cachorro-do-mato (Cerdocyon thous) na região do Bioma Pampa, Rio Grande do Sul, Brasil. O animal foi encontrado morto em um trecho da BR-472, Km 585, na mesorregião sudoeste do Rio Grande do Sul, e submetido à necropsia. Foram encontrados e identificados, quatro espécimes de carrapatos, todos machos adultos de A. aureolatum. A presença de A. aureolatum, no exemplar de cachorro-do-mato de vida livre gera algumas questões pertinentes para futuros estudos, tais como a sazonalidade destes parasitos e a possibilidade de infestação e transmissão de doenças para animais domésticos e para o homem, considerando a proximidade principalmente nas propriedades rurais.

Resumo. O objetivo do estudo foi estimar a prevalência de nematódeos intestinais em equinos da região sul do Rio Grande do Sul, Brasil. Doze propriedades foram incluídas no estudo. Foram analisados 385 equinos, machos e fêmeas, com idade entre seis meses e 27 anos. As fazendas foram consideradas infectadas quando pelo menos um equino analisado foi positivo. A pesquisa parasitológica foi realizada por meio das técnicas de McMaster e Coprocultura. Ciatostomíneos foram encontrados em todas as propriedades e Strongylus vulgaris em apenas duas. A prevalência de nematódeos intestinais nos equinos foi: Ciatostomíneos (96,36%), Parascaris equorum (12,21%), Oxyuris equi (10,13%) e Strongyloides westeri (3,12%). O conhecimento acerca da prevalência dos nematódeos intestinais poderá contribuir para elaboração de programas de controle parasitário na região.

The objective of this study was to assess the efficacy of commercial anthelmintics in horses naturally infected with gastrointestinal nematodes from the southern Rio Grande do Sul state, Brazil. The anthelmintic efficacy was assessed by fecal egg count reduction test (FECRT) and coproculture. Fecal samples were collected from 110 animals in seven farms located in the southern region of the state of Rio Grande do Sul, in the south of Brazil. Criteria used to suspect anthelmintic resistance included percentages of efficacy lower than 95% and a lower limit of the confidence interval below 90%. Anthelmintic resistance was detected in five of the seven farms studied. Coproculture results show that, even after horses were treated with anthelmintics, infection by nematodes of the subfamily Cyathostominae was still present in animals from five farms.

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Eimeria infections are common in sheep industry worldwide, however information about their epidemiology is scarce in southern state of Rio Grande do Sul, Brazil. Therefore, a cross-sectional study was carried out to determine the prevalence, species characterization, and associated risk factors between Eimeria species and sheep flocks. Fecal samples from 428 sheep from 21 farms were tested for the presence of oocysts. The overall prevalence of Eimeria spp. was 68.69% and was significantly affected by age of the sheep, with highest prevalence in animals under 18 months of age. Eight Eimeria species were identified. Eimeria ovinoidalis (85.71%) was the most common, followed by Eimeria crandallis (80.95%), Eimeria granulosa (78.95%), Eimeria ahsata (61.90%), Eimeria faurei (42.86%), Eimeria bakuensis (38.10%), Eimeria punctata (14.29%), and Eimeria pallida (9.52%). All herds were positive, with concomitant infections. Among management and husbandry practices; farm size, animal density, farming system, breeding objectives, and pasture system influenced the prevalence of Eimeria species. The infection was more prevalent on small farms with high animal density, in sheep raised for meat, semi-intensive system, and rotational grazing (p < 0.05). The wide distribution of this protozoan and the high frequency of pathogenic species show the importance and potential damage of coccidiosis in sheep flocks in Rio Grande do Sul.