LONDON, Feb 4 (Reuters) - The euro fell to a seven-month low against the dollar on Thursday, pressured by concerns about the fiscal health of Greece, Portugal and Spain and ahead of a European Central Bank policy meeting.

The euro fell 0.4 percent to $1.3844, its weakest since early July 2009, according to Reuters data, taking it below a key $1.3850 options barrier, traders said.

Falls in the euro helped lift the dollar index .DXY to a six-month high of 79.623.

(Reporting by London Forex Team)

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