ABSTRACTThe aim of this work was to develop and evaluate an indirect enzyme-linked immunosorbent assay (ELISA) and made a serological screening for specific antibodies to BoHV-4. Bovine serum samples were collected from different Brazilian states and evaluated for the presence of antibodies for BoHV-4 and BoHV-1. The serological results obtained showed that the indirect ELISA assay could be applied for the detection of specific antibodies for BoHV-4. The ELISA test allowed concluding that BoHV-4 is present in bovines in every Brazilian state from which serum samples were collected. The ELISA assay here standardized proved to be useful for the epidemiological studies and showed a positivity range from 1.8 to 66% in Brazil.

Resumo O principal objetivo deste texto é analisar alguns aspectos relacionados à implementação de uma política industrial no Brasil coerente com os ambientes internos e externos reais. Uma perspectiva de médio e longo prazo é adotada, e aspectos macro e microeconômicos da economia brasileira são enfatizados.

Abstract The main purpose of this text is to analyse some aspects related to the implementation of an industrial policy in Brazil coherent with both, actual internal and external environments. A medium and long run perspective is adopted, and macro and micro-economic aspects of Brazilian economy is emphasized.