Some fungi have a carcinogenic effect, through the fruit from decay and rot is not part of the spread.

有些真菌具有致癌作用，可以从腐烂部分通过果汁向未腐烂部分扩散。

youdao

Those brown spots are rot and decay.

那些棕色的斑点是腐烂。

youdao

It also had all of the smells of rot, decay, and ferment: the great heaps of grape pulp and skin at the wineries sent a smell all through the town if there was a little wind stirring.

当然，那里也有腐烂、变质、发酵的气息：微风吹过，酿酒厂旁边的一堆堆果肉和果皮散发出的臭味便会飘满全镇。

youdao

He will most likely encounter any one or more familiar ailments such as tooth decay, blisters and haemorrhoids, and less familiar ones such as crotch-rot and frostbite.

BBC: Sir Ranulph Fiennes: Up the Pole