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Bb diversity in nymphal ticks is derived from two sources.

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posted on 2016-07-14, 03:30 authored by Katharine S. Walter, Giovanna Carpi, Benjamin R. Evans, Adalgisa Caccone, Maria A. Diuk-Wasser

(a) Larval ticks may be infected with a single Bb strain that may undergo in situ evolution over the course of the tick’s ten-month infection, a single infection. (b) Alternatively, larval ticks may be infected with a diverse infecting inoculum from the vertebrate host and the mixed-strain Bb population may further undergo in situ evolution over the tick’s 10-month infection. De novo mutations acquired over the ticks’ infection are represented by x’s.

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