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Dec 11 (Reuters) - European shares slipped on Friday,
setting up to end an action-packed week on a cautious note on
worries over the economic impact of a resurgent COVID-19
pandemic, the fate of a Brexit trade deal and the stalled U.S.
stimulus measures.
The pan-European STOXX 600 index .STOXX slipped 0.2%,
extending losses after a dour 2021 economic forecast from the
European Central Bank had seen it end in the red on Thursday.
The index is set to break a five-week winning streak as a
stalemate in talks between the European Union and Britain raised
the chances of Britain's exit from the economic bloc without a
trade deal. Shares of drugmaker Sanofi SASY.PA fell 2.1% after it said
its COVID-19 vaccine candidate developed with GlaxoSmithKline
GSK.L showed an insufficient immune response in clinical
trials. GSK shares were down 0.1%.