FTSE 100 retreats as insurers, Tesco take hit

(Reuters) - Britain's FTSE 100 pulled back on Wednesday, as a rising global death toll crushed hopes that the coronavirus crisis was subsiding, while insurers took a hit over halts in dividend payments and Tesco warned of a surge in costs.The blue-chip FTSE 100 index ended 0.5% lower after closing at a near two-week high on Tuesday. It is still up 4.8% for the week. Shares of Aviva Plc and Direct Line , RSA and Lloyds of London-member Hiscox fell between 3.8% and 7.9% after saying they were..