(Bloomberg) -- Noubar Afeyan became a billionaire backing Moderna Inc., the dark horse biotech firm that became a household name due to its lifesaving Covid vaccine. He just added to his fortune after another one of his long-shot bets quintupled in value.Most Read from BloombergTrump ‘Standing Order’ to Declassify Not Found by DOJ, Intelligence AgencySwitzerland Blocks Sale of Leopard 1 Tanks Bound for UkraineA $100 Billion Wealth Migration Tilts US Economy’s Center of Gravity SouthChina’s Econo