RESUMO
A toxocaríase é uma doença causada geralmente pela ingestão acidental de ovos larvados de Toxocara canis e/ou Toxocara cati, acometendo principalmente crianças. Esses ovos larvados permanecem viáveis por longos períodos no ambiente. Objetivou-se detectar focos de Toxocara spp a partir da análise do local habitado por crianças diagnosticadas com a doença em 2012 e 2013 em Belo Horizonte, Minas Gerais. Os responsáveis pelos pacientes foram entrevistados e foram coletadas amostras de solo dos domicílios para pesquisa de ovos de Toxocara spp. pelo método de Faust. Também foi realizada entrevista com as pediatras responsáveispela notificação e tratamento na suspeição do diagnóstico de Larva Migrans Visceral (LMV). As famílias tinham características socioeconômicas semelhantes, viviam em lotes multifamiliares e em 100% dos casos havia contato com cães filhotes e adultos. Verificou-se presença de fezes caninas expostas em locais de risco, sem recolhimento diário, e as crianças diagnosticadas tinham contato diário com essas áreas, não eram orientadas quanto à higiene das mãos e alimentos crus eram lavados apenas com água. Havia ovos infectantes viáveis de Toxocara spp. em 100% das amostras coletadas. Mesmo sob tratamento, no período do estudo, não houve mudança nos fatores de risco ambientais, nem desverminação de algum cão após o diagnóstico nas crianças. Foram propostas atividades de educação em saúde sobre este tema, sob forma de cartilhas direcionadas para a população e para os profissionais de saúde. Este trabalho proporcionou aos participantes do PET-Saúde ampla visão sobre os desafios do trabalho multiprofissional no SUS na intervenção de uma importante zoonose.
Toxocariasis is a disease that mainly affects children and is generally caused by the accidental ingestion of Toxocara canis and/or Toxocara cati embryonated eggs. These embryonated eggs remain viable for long periods in the environment. This study aimed at detecting outbreaks of Toxocara spp by analyzing places inhabited by children who had been diagnosedwith the disease in 2012 and 2013, in Belo Horizonte, Minas Gerais. The patients? guardians were interviewed, and soil samples were collected from their households to survey the presence of Toxocara spp. eggs through the method of Faust. The patients? pediatricians, who notified and treated the suspected cases with a diagnosis of (LMV), were also interviewed. All interviewed families had similar socio-economic characteristics, lived in multi-family lots, and had contact with puppies and adult dogs. The presence of exposed canine feces, which were not collected daily, was observed in places of risk; the diagnosed children had daily contact with these areas and were not oriented with regard to hand hygiene; in addition, raw food was washed with water only. Infective viable eggs of Toxocara spp. were detected in 100% of collected samples.Changes in environmental risk factors or dog deworming were not executed even after the diagnosed children were placed under treatment, during the study period. Health education activities on this topic were proposed with the use of booklets directed to the population and health professionals. This study provided ample insight to PET-Health participants into the challenges of multi-professional work in the SUS about intervention on an important zoonosis.
RESUMO
The subcutaneous acarid parasite Laminosioptes cysticola, the fowl cyst mite, has been found for a number of years in free-range chickens of peri-urban and rural Minas Gerais, forming collagen cysts which may be subsequently calcified after the parasite's death. The role of free-range chickens as hosts and the possible risk of food-borne human allergy, as a result of its consumption in feed, are considered.
O parasito acarino subcutâneo Laminosioptes cysticola tem sido encontrado em galinhas de subsistência periurbanas e rurais em Minas Gerais, formando cistos arredondados que podem calcificar sob a pele após a morte do parasito. Detalhes do parasitismo e do parasito são discutidos, sendo especulado o risco potencial humano em alergia de origem alimentar pelo consumo da carne da ave contendo os cistos.
RESUMO
The ixodid Amblyomma aureolatum is suspected to play a role in the epidemiology of wild life-cycle hemoparasites, which frequently infect dogs in rural and hunting areas in Brazil. Little is known about its bionomics. The objective of the present study was to evaluate some bionomic aspects of A. aureolatum ticks in Brazil. One engorged female, collected from a dog (Canis familiaris) in Säo Sebastiäo das Aguas Claras, State of Minas Gerais, was used to establish a colony in the laboratory. Subsequently its parasitic stage progeny were fed on domestic dogs and laboratory animals. The free-living stages were incubated at 27ºC ± 2°C and minimum 70 percent relative humidity in a BOD incubator. The egg incubation period ranged from 31 to 34 days; the parasitic period of larvae ranged from 4 to 6 days and ecdysis to nymphs occurred from day 19 up to day 22. The parasitic period of nymphs ranged from 5 to 8 days and the period of ecdysis to adults from 31 to 33 days. The parasitic period of adults ranged from 11 to 15 days, the pre-oviposition period from 6 to 12 days, and the oviposition period from 9 to 38 days. The total duration of the life cycle ranged from 116 to 168 days