(Fixes slug) By Jessica DiNapoli NEW YORK (Reuters) -Wall Street recouped losses on Tuesday after a bruising session the previous day, with oil prices also gaining as investors sought riskier assets despite surging Omicron COVID-19 cases around the world. U.S. President Joe Biden on Tuesday said he would be taking steps to fight the Omicron variant, by opening federal testing sites in New York City and buying 500 million at-home tests Americans can order online for free. World shares fell earlier in the week after Omicron infections multiplied around the world, but strong corporate earnings an…

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