Grab,
I used to think it was pronounced "coo-doze," and I thought it was plural, like "tacos" or "winos" or "rhinos" (one person deserves one kudo, but someone else deserves two kudos). Then I heard (or read) a discussion of it, in which it was pointed out that it was a Greek word comparable to "ethos" or "pathos," and pronounced "coo-doss" or maybe "coo-dose." You can give "some kudos," just like a play can contain "some pathos," or you can refer to someone deserving "kudos," without the adjective, but there is no such thing as giving someone "a kudo or two," anymore than one can "put on a clo or two," instead of just putting on "some clothes."
Even though you may deserve "more kudos" than Bert does, it is not correct to say that "more kudos are due you." It would be "more kudos is due you... "

Genie