MeSH definition : Includes newly defined organisms as well as some that will never be classified to
the genus and/or species level because of loss of the specimen or other information.;
MeSH annotation : index here if the author uses the term microsporidium or unclassifed microsporidia;
index MICROSPORIDIA if the author uses microsporidia as a general term for the phylum;
infection: coordinate IM with MICROSPORIDIOSIS (IM); coordinate with specific fungal
term (ANTIGENS, FUNGAL, etc) if pertinent;
Includes newly defined organisms as well as some that will never be classified to
the genus and/or species level because of loss of the specimen or other information.