# ECTyper ## About ECTyper is a bioinformatics tool specifically designed for serotyping of Escherichia coli. It efficiently determines both O-serogroup and H-serotype by analysing genetic loci associated with these antigens. The ECTyper tool does not take K antigen into account. ## Method For full details on the ECTyper method see the software repository: . ## How to Cite **Bessonov Kyrylo, Chad Laing, James Robertson, Irene Yong, Kim Ziebell, Victor PJ Gannon, Anil Nichani, Gitanjali Arya, John HE Nash, and Sara Christianson**. "ECTyper: in silico Escherichia coli serotype and species prediction from raw and assembled whole-genome sequence data." Microbial genomics 7, no. 12 (2021): 000728. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cgps.gitbook.io/pathogenwatch/technical-descriptions-of-analysis-tools/serotyping/ectyper.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.