Genetic heterogeneity among isolates of Coxiella burnetii.

Chromosomal and plasmid DNA have been extracted from six isolates of Coxiella burnetii, the aetiological agent of Q fever. Restriction fragment length polymorphisms detected after HaeIII digestions of chromosomal DNA revealed four different patterns that distinguished the American from the European isolates, and the Nine Mile phase I prototype strain from a… CONTINUE READING