Brazilian purpuric fever: evolutionary genetic relationships of the case clone of Haemophilus influenzae biogroup aegyptius to encapsulated strains of Haemophilus influenzae.

Abstract excerpt

As a first step toward identifying the evolutionary origin of a pathogenic clone of Haemophilus influenzae biogroup aegyptius causing Brazilian purpuric fever, chromosomal variation and genetic relationships were indexed among 17 isolates of biogroup aegyptius and 2209 previously characterized encapsulated H. influenzae strains recovered from 30 countries on six continents. Biogroup aegyptius isolates form three...

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