ABSTRACT
A brief historical overview is given of the most relevant taxonomic studies of insect groups vectors of transmissible diseases in Brazil, from the "heroic" times of the foundation of the Instituto Oswaldo Cruz in Rio de Janeiro up to the present. The following orders are considered: Phthiraptera (Anoplura, Amblycera and Ischnocera), Hemiptera (Reduviidae: Triatominae), Siphonaptera and Diptera (Culicidae, Ceratopogonidae, Psychodidae: Phlebotominae, Simuliidae, Tabanidae, Chloropidae and Muscidae). The most important Brazilian collections of each group are cited
Subject(s)
Animals , Communicable Diseases/parasitology , Insect Vectors/classification , Academies and Institutes , BrazilABSTRACT
Em 203 pacientes com história de asma e rinite e com crises respiratórias ao contato com pó domiciliar, foram realizados testes cutâneos com B. germanica, pesquisa de IgE específica pelo método ELISA ("Enzyme-Linked Immunosorbent Assay") e prova de Immunoblotting. Em 37, as provas cutâneas foram positivas, e em 14 foram demonstrados anticorpos IgE específicos em concentraçöes baixas ou moderadas e apenas dois com nível elevado. Pela prova de "Immunoblotting", em oito soros, os anticorpos reconheceram fraçöes alergênicas presentes no extrato total. Sete pacientes apresentaram também anticorpos para a P. americana, em concentraçöes semelhantes àquelas determinadas para a B. germanica.
Subject(s)
Humans , Asthma/immunology , Cockroaches/immunology , Hypersensitivity , Rhinitis/immunology , Brazil , Enzyme-Linked Immunosorbent Assay , Immunoblotting , Immunoglobulin E/blood , Skin TestsABSTRACT
Cypermethrin (4 g/l, 5 g/l wettable powder and 7 ml/l, 10 ml/l emulsifiable concentrate) was tested, under laboratory conditions, against the adult Musca domestica. As a standard for comparison, a 6 ml/l concentrate suspension formulation of deltamethrin was used. One and twenty-four hours after application, mortality counts showed that the substances under test killed, respectively, more than 80% and 85% of the exposed insects. Under the conditions of the test, cypermethrin was considered effective in the control of the house fly.