New Revised Standard Version
and whoever touches any swarming thing by which he may be made unclean or any human being by whom he may be made unclean—whatever his uncleanness may be—

Contemporary English Version
or if you have touched an unclean creature of any sort, including an unclean person.

New American Bible
or if anyone touches any swarming creature whose uncleanness is contagious or any person whose uncleanness, of whatever kind it may be, is contagious—

Douay-Rheims Bible
And he that toucheth a creeping thing, or any unclean thing, the touching of which is defiling:

And he that toucheth a creeping thing, or any unclean thing, the touching of which is defiling:

whosoever

Leviticus 11:24,43,44 And whosoever shall touch the carcasses of them, shall be defiled: and shall be unclean until the evening: . . .

or a man

Leviticus 15:7,19 He that toucheth his flesh, shall wash his clothes: and being himself washed with water shall be unclean until the evening. . . .