Miscellaneous Micro Tropheryma whippelii / Whipple's disease associated with positive PAS stain DNA viruses HHV7 BK virus transplant patients commonly targets kidney can also cause hemorrhagic cystits same family as JC virus (JC = junky cerebrum, BK = bad kidney) RNA viruses HDV St. Louis encephalitis EEE WEE HTLV LCMV California encephalitis (arbovirus) Sandfly/rift valley fevers Crimean-Congo hemorrhagic fever (arbovirus)