(Updates prices, sectors) July 5 (Reuters) - Canada’s main stock index fell on Monday as concerns over a rise in coronavirus infections globally led investors hold back on trades, while Brookfield Business Partners jumped after it announced the takeover of a U.S. based car parts maker for $3.4 billion. Brookfield Business Partners LP rose 2% after it said it would acquire U.S. car parts maker DexKo Global Inc from private equity firm KPS Capital Partners LP for $3.4 billion. * At 9:49 a.m. ET (13:49 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was down 13.86 points, or 0.07%, at 20,212.25. * The energy sector dropped 0.2% even as U.S. crude prices were up 0.2% a barrel, while Brent crude added 0.2%. * The financials sector remain unchanged. The industrials sector fell 0.1%. * The materials sector, which includes precious and base metals miners and fertilizer companies, added 0.2% as gold futures rose 0.5% to $1,791.5 an ounce. * On the TSX, 94 issues were higher, while 123 issues declined for a 1.31-to-1 ratio to the downside, with 10.00 million shares traded. * The largest percentage gainers on the TSX were Cascades Inc, which jumped 5.9% and Fairfax Financial Holdings , which rose 4.3%. * Interfor Corp fell 2.2%, the most on the TSX, while the second biggest decliner was West Fraser Timber Co , down 2.0%. * The most heavily traded shares by volume were Toronto Dominion Bank, Goldgroup Mining and Bombardier . * The TSX posted eight new 52-week highs and no new lows. * Across all Canadian issues there were 70 new 52-week highs and six new lows, with total volume of 23.61 million shares. Reporting by Shashank Nayar in Bengaluru, Editing by Franklin Paul Our Standards: The Thomson Reuters Trust Principles.