"Looking beyond the Delta headwind, we expect the demand recovery to continue alongside rising vaccination rates." Aug 13 (Reuters) - U.S. investment bank Goldman Sachs said a recent call by the United States to OPEC+ to boost oil output is unlikely to result in higher production over the short-term given the threat to demand from the coronavirus Delta variant. U.S. President Joe Biden's administration on Wednesday urged the Organization of Petroleum Exporting Countries (OPEC) and its allies, known as OPEC+, to boost output to tackle rising gasoline prices that they see as a threat to the global economic recovery.