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How Is TB Transmitted ?

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Clinical Frequency of rpoB Mutations<br />

rpoB<br />

mutation<br />

S531L<br />

H526Y<br />

H526D<br />

S531W<br />

H526R<br />

R529Q<br />

Mean<br />

fitness<br />

1.02<br />

0.82<br />

0.78<br />

0.82<br />

0.82<br />

0.58<br />

Clinical<br />

frequency (%)*<br />

54<br />

11<br />

7<br />

4<br />

3<br />

0<br />

* based on 840 clinical isolates (O’Sullivan et al. 2005)

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