[Natural infection by Yersinia pestis, in fleas from plague foci in the northeast of Brazil].
Three different containment transport processes of fleas were evaluated as an approach to the bacteriologic isolation of Yersinia pestis. The three methods employed were: live fleas in glass tubes containing pieces of wrapped filter paper; dead fleas in saline solution; and macerated fleas in Cary-Blair culture medium. The two latter methods were almost equal and superior to the first method. A total of 29512 flea pools, from plaque foci in Northeast Brazil collected during 1966 to 1982 were evaluated by the three methods. Among these samples, 236 (0.80%) flea pools were positive with regard to bacteriological cultivation and/or infection of susceptible animals.
Brasil
D P
DP
Laboratório de Peste, Centro de Pesquisas Aggeu Magalhães, Recife, Brasil.
de Carvalho
F G
FG
de Almeida
C R
CR
de Almeida
A M
AM
D000818:Animals; D001938:Brazil / Q000453:epidemiology; D004772:Entomology / Q000379:methods; D007303:Insect Vectors / Q000382:microbiology*; D010930:Plague / Q000453:epidemiology; D005423:Siphonaptera / Q000382:microbiology*; D015010:Yersinia pestis / Q000302:isolation & purification*
Pesquisa da infecção natural por Yersinia pestis, em pulicídeos provenientes de focos pestosos do Nordeste do Brasil.