(Reuters) - European shares edged higher on Tuesday following a clutch of upbeat quarterly earnings reports, but investors remained cautious of a resurgence in new coronavirus cases as hard-hit economies lift lockdowns.The pan-European STOXX 600 index rose 0.4% by 0726 GMT, with still gains led by telecoms , healthcare and utilities - sectors that investors seek during times of economic uncertainty.Boosting UK's FTSE 100 , Vodafone's shares jumped 3.9% after the world's second-largest mobile..