MANAMA: Real GDP growth in the GCC will take 2-3 years to return to pre-pandemic levels, with the recovery most protracted in the more economically-diversified sovereigns, where key sectors such as transportation and tourism will be slow to return to health, says a report by Moody’s Investors Service.The negative 2021 outlook for sovereign creditworthiness in the six-nation bloc reflects the coronavirus-related fall in oil revenue which is driving this year’s deterioration in fiscal strength while constraining government spending and slowing the economic recovery .