Abstract:Os autores estudaram 253 ratos domésticos (Rattus norvegicus e Rattus r. frugivorus), infectados experimentalmente (via subcutânea) com duas cepas de Yersinia pestis (cepas "PEXU-19" e "RANGEL"), isoladas de roedores silvestres capturados no nordeste brasileiro (Exú - Pernambuco) e na Venezuela, respectivamente, as quais foram mantidas em meio de cultura e subinoculadas periodicamente. A sobrevida dos animais infectados variou de dois a sete dias, sendo os sobreviventes sacrificados no 20º dia após a data da i… Show more
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