Otoacaríase psoróptica dos caprinos-Infestação subclínica

Naturally occuring subclinical psoroptic otoacariasis in goats is reported in Pernambuco and Rio de Janeiro State. Infestation rates of 59.3% and 46% were observed in goats for about twelve months of age in the States of Pernambuco and Rio de Janeiro, respectively.A otoacaríase psoróptica subclínica dos caprinos é assinalada nos Estados de Pernambuco e Rio de Janeiro. Índices de infestação de 59,3% e 46% foram observados em animais com idade aproximada de doze meses, criados no Estados de Pernambuco e Rio de Janeiro, respectivamente.

Ornithodoros brasiliensis Aragão (Acari: Argasidae): description of the larva, redescription of male and female, and neotype designation

Ornithodoros brasiliensis is an endemic tick from Brazil and is very aggressive to humans, resulting in pain, fever and intense inflammatory response. After more than 50 years without report, this species was recently found in rural areas of São Francisco de Paula municipality, State of Rio Grande do Sul, southern Brazil, from where it was originally described. Herein, we describe the larva and redescribe the adults of O. brasiliensis based on scanning electron microscopy. Since the type was lost we designate the neotype specimen under the number IBSP 10409. In addition, the relationship between O. brasiliensis and other species from the Neotropical region that share the morphological characteristics of Ornithodoros with dorsal humps on tarsi, and also live under the soil and feed on hosts other than bats, are discussed. Molecular analysis inferred from a portion of the 16S rRNA mitochondrial gene is also provided and it placed O. brasiliensis in a cluster supported by a maximal bootstrap value (100%) with Ornithodoros parkeri, Ornithodoros rostratus, and Ornithodoros turicata.Fil: Barros Battesti, Darci M.. Governo do Estado de Sao Paulo. Secretaria da Saude. Instituto Butantan; BrasilFil: Onofrio, Valeria C.. Governo do Estado de Sao Paulo. Secretaria da Saude. Instituto Butantan; BrasilFil: Nieri Bastos, Fernanda A.. Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Medicina Veterinária Preventiva e Saúde Animal; BrasilFil: Soares, João Fábio. Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Medicina Veterinária Preventiva e Saúde Animal; BrasilFil: Marcili, Arlei. Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Medicina Veterinária Preventiva e Saúde Animal; BrasilFil: Famadas, Kátia M.. Universidad Federal Rural de Rio de Janeiro; BrasilFil: Faccini, Joao Luiz H.. Universidad Federal Rural de Rio de Janeiro; BrasilFil: Ramirez, Diego G.. Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Medicina Veterinária Preventiva e Saúde Animal; BrasilFil: Doyle, Rovaina L.. Instituto de Pesquisas Veterinárias Desidério Finamor; BrasilFil: Martins, João Ricardo. Instituto de Pesquisas Veterinárias Desidério Finamor; BrasilFil: Junior, José R.. Universidade Federal do Rio Grande do Sul; BrasilFil: Guglielmone, Alberto Alejandro. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Santa Fe. Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Labruna, Marcelo B.. Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Medicina Veterinária Preventiva e Saúde Animal; Brasi

Ticks from the Brazilian Amazon: Species, Distribution and Host-Relations

Ticks are important ectoparasites and can transmit a wide variety of pathogens to animals and humans worldwide. These ectoparasites are the most important vectors of diseases causing pathogens in domestic and wild animals, and the second for man. In Brazil, Spotted Fever is the only disease transmitted to humans by ticks, while for animals we can highlight babesiosis, ehrlichiosis and anaplasmosis. Although ticks are found in all of Brazil’s biomes, little is known about its diversity and host-relations in the Amazon biome. The existing gaps and the lack of research indicate that the diversity of ticks and their possible pathogens are underestimated in the Brazilian Amazon. Therefore, in order to guide the next studies in the Amazon biome, we present in this chapter a compilation of the records of hard ticks and soft ticks parasitizing wild and domestic animals, and humans. We present the general list of ticks for this biome, their distribution, hosts and importance for public health and veterinary. Finally, the ixodofauna found in the Brazilian Amazon and presented here does not match the vertebrate diversity of this biome, which is one of the largest on the planet. Therefore, more acarologists and epidemiologists are needed in this region

Swine sarcoptic mange. II. Economic evaluation of alternative control strategies

Buscou-se, neste trabalho, analisar do ponto de vista econômico uma estratégia de ação no controle da sarna sarcóptica (SS), em uma granja de ciclo completo, no período de 1982 a 1988, com capacidade para 240 fêmeas e 12 machos mantidos em confinamento, e compará-la com estratégias usualmente utilizadas. A análise foi efetuada comparando-se ano a ano a estratégia de controle (EC) adotada com o uso de sarnicida injetável (SI), duas vezes ao ano, e aplicação de sarnicida (AS) através da pulverização dos animais duas vezes ao ano. No período estudado, a população da granja teve um crescimento de 18% no plantel de reprodutores, e de 110% no rebanho. Em conseqüência, o custo total da EC evoluiu de US$144,47 para US$ 595,62, o que representa uma variação de 312%. No caso do SI e do AS, o custo variou apenas 1,04% e 6,24%, respectivamente. O exame de "raspados" da "EC", nem sempre está disponível aos produtores ou há dificuldade de acesso. Nestes casos a pulverização do sarnicida é a opção indicada.The aim of the paper was to compare economically three control methods of sarcoptic mange. The methods were: 1) strategic method (SM); 2) injectable product (IP); 3) spray product (SP). The SM was applied from 1982 to 1988 in a confined herd with 240 sows and 12 boards, while the cost of IP and SP were estimated assuming identical effects in terms of mange control. The costs of the treatments were calculated for each year for the herd and by animal. From 1982 to 1985 the SM presented the lowest total cost while from 1986 to 1988 the SP had small total cost. The SM, IP and SP had an increase of 312%, 1.04% and 6.24% respectively. The exam of "scrapings" of "EC" not always is available to the producers or the access is difficult. In these cases the spray product showed the indicated alternative

Evaluation of skin sensitivity in dogs bearing allergic dermatitis to standardized allergenic extract of house dust and storage mites

The objective of the study was to evaluate whether allergenic extracts of five house dust and storage mite species standardized for humans might be used for the diagnosis of canine atopic dermatitis (CAD). Extracts of Dermatophagoides pteronyssinus (Pyroglyphidae), D. farinae (Pyroglyphidae), Blomia tropicalis (Glycyphagidae), Lepidoglyphus destructor (Glycyphagidae) and Tyrophagus putrescentiae (Acaridae) were evaluated by intradermal testing in 20 healthy dogs (control) and 25 dogs with allergic dermatitis. A significant difference in the response was observed between the two groups (p<0.05). Only one dog (5%) in the control group reacted to the intradermal test, whereas 14 dogs (56%) in the allergic group were positive for at least one extract (odds ratio = 24.2). Most of the positive reactions observed in the allergic group occurred against the extracts of T. putrescentiae or L. destructor, each inducing reactions in 10 dogs (40%). D. farinae, D. pteronyssinus e B. tropicalis extracts induced reactions in 7 (28%), 3 (12%) and 3 (12%) dogs, respectively. The allergenic extracts standardized for humans evaluated in the present study may be used as a tool to complement the diagnosis of the disease, as well as to select potential allergen candidates for allergen-specific immunotherapy