VSG 117 gene is conservatively present and early expressed in Trypanosma evansi YNB stock

► VSG 117 was detectable in Trypanosoma evansi YNB stock by PCR reaction. ► This VSG tends to be expressed in the early stage of infections (on day 9-15). ► Those variants, detected by VSG117 specific Abs share identical NTD yet different CTDs.