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Nov 18 (Reuters) - European stocks slipped on Wednesday as worries about further economic damage and fresh lockdown measures caused by a resurgent pandemic dented recent optimism over promising vaccine trial results.
The pan-European STOXX 600 .STOXX extended losses for a second session after dropping 0.4% by 0805 GMT.
Real estate .SX86P and energy stocks .SXEP fell the most, while tech stocks .SX8P advanced.
Britain's RSA Insurance RSA.L rose 3.8% to the top of the STOXX 600 index after the company said it had received a cash offer worth 7.2 billion pounds ($9.55 billion) from Canadian peer Intact Financial IFC.TO and Danish insurer Tryg TRYG.CO . Boerse DB1Gn.DE gained 0.8% after the German stock exchange operator said it would acquire an 80% stake in corporate governance adviser Institutional Shareholder Services (ISS) for about $1.8 billion.