T. vaginalis is a ‘neglected’ parasite . Data are shown for human parasites that belong to nine different genera (Entamoeba, Cryptosporidium, Giardia, Plasmodium, Trichomonas) or groups (Microsporidia, piroplasms, coccidia, TriTryp) of closely-related prasites as far as (a) number of genome projects, and (b) number of research publications in PubMed. The number of PubMed articles was calculated from the past 10 years.