A new chromosome-level genome assembly and annotation of .

spp. are medically and scientifically relevant protozoan parasites that cause severe diarrheal illness in infants and immunosuppressed populations as well as animals. Although most human infections are caused by and , there are several other human-infecting species including , which is commonly observed in developing countries. Here, we polished and annotated a long-read genome sequence assembly for TU1867, a species which infects birds and humans. The genome sequence was generated using a combination of whole genome amplification (WGA) and long-read Oxford Nanopore Technologies sequencing. The assembly was then polished with Illumina data. The chromosome-level genome assembly is 9.2 Mbp with a contig N50 of 1.1 Mb. Annotation revealed 3,923 protein-coding genes. A BUSCO analysis indicates a completeness of 96.6% (n=446), including 430 (96.4%) single-copy and 1 (0.224%) duplicated apicomplexan conserved gene(s). The new genome assembly is nearly gap-free and provides a valuable new resource for the community and future studies on evolution and host-specificity.