I checked in on one of my clutches and I have an egg that's moldy, how do I prevent it from spreading to the others?

This was the only clutch I have that couldnt be separated as they were stuck together too much and I didn't want to risk tearing them. Will the other eggs be ok?

I candled the rest and they are developing normally, they were laid on 4-14 (5 weeks ago)

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