LONDON (Reuters) - Oil prices were steady on Monday, supported by tighter supplies from major producers but held in check by concerns over a record rise in coronavirus infections worldwide that could stall a recovery in fuel demand.Brent crude rose 10 cents, or 0.2%, to $42.29 a barrel by 0826 GMT, while U.S. crude for August delivery was at $39.87 a barrel, up 4 cents, or 0.1%.South Korea said on Monday for the first time it is in the midst of a 'second wave' of the coronavirus. The World..