Trypanosomiasis African trypanosomiasis (Sleeping sickness) Trypanosoma brucei gambiense Trypanosoma brucei rhodesiense South American trypanosomiasis (Chagas disease) Trypanosoma cruzi.
Microsporidiosis Encephalitozoon spp
Leishmaniasis Leishmania spp
Note that cerebral leishmaniasis is exceedingly rare, and microsporidial infections have become apparent as significant human CNS diseases only in the last decades.