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Tuberculosis
New tuberculosis study findings recently were reported by researchers at McGill University
August 26th, 2008
According to a study from Montreal, Canada, "For a strain of Mycobacterium tuberculosis mono-resistant to pyrazinamide (PZA), we report the geographic distribution within Quebec of the 77 cases diagnosed during 1990-2000. Known as the Quebec mutation (or the pncA deletion), the strain is rare in urban areas and showed an unexpected concentration in Mauricie, one of the 16 health districts of the province, with a cluster of 10 cases situated in a rural area of 35-km radius." "The cases occurred among people > 50 (98%), of French Canadian origins (90%), and are understood to have arisen by reactivation. The rarity in Montreal and smaller cities is explained by the...
Source: TB & Outbreaks Week (2008-08-26)
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