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Stroke risk linked to bacterial infection

By Anil Ananthaswamy

26 April 2003

CAN you catch a stroke? Sometimes, is the answer according to the largest study to date.

Infection with bacteria such as Chlamydia pneumoniae has already been linked with heart disease (Âé¶¹´«Ã½, 31 March 2001, p 18). Such infections may trigger inflammation that leads to plaque formation in the arteries, or atherosclerosis.

There is no conclusive evidence of a link between C. pneumoniae and strokes. But most previous studies relied on finding antibodies of a type known as IgG, which are not good markers for active infection as they persist for decades.

Mitchell Elkind’s team at Columbia University in…

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