<prompt> With reference to mumps which of the following is true?Meningoencephalitis can precede parotitisSalivary gland involvement is limited to the parotidThe patient is not infectious prior to clinical parotid enlargementMumps orchitis frequently leads to infertility  <response>: Ans. is a i.e., Meningoencephalitis can precede parotitis Ref: Harrison, 19the, p. 1298Aseptic meningitis may develop before, during, after, or in the absence of parotitis.ABOUT OTHER OPTIONS: Mainly parotid glands are involved, but sublingual and submaxillary glands may also be involved. Patient is infectious 4 - 6 days before the onset of swelling. Sterility after mumps orchitis is rare. Q 