GLOBAL MARKETS-Stocks tumble as coronavirus cases rise rapidly outside China <!-- no image --> <div>* Oil falls on virus concerns even as OPEC agrees to output cuts<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=5LWlMe_E-Js:DSRpQDpyBgc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=5LWlMe_E-Js:DSRpQDpyBgc:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=5LWlMe_E-Js:DSRpQDpyBgc:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=5LWlMe_E-Js:DSRpQDpyBgc:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=5LWlMe_E-Js:DSRpQDpyBgc:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/5LWlMe_E-Js" height="1" width="1" alt=""></div> Posted by Reuters