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Analysis of this switching event showed that trypanosomes expressing any one of three distinct preswitch VSG's could switch to expression of from one to three different postswitch VSG's. Up to 2.7 percent of the trypanosome population was in the process of switching at one time.\n          <\/jats:p>","DOI":"10.1126\/science.3892689","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T19:42:50Z","timestamp":1160077370000},"page":"190-193","source":"Crossref","is-referenced-by-count":53,"title":["Expression of Two Variant Surface Glycoproteins on Individual African Trypanosomes During Antigen Switching"],"prefix":"10.1126","volume":"229","author":[{"given":"Klaus M.","family":"Esser","sequence":"first","affiliation":[{"name":"Department of Immunology, Walter Reed Army Institute of Research, Washington, D.C. 20307-5100"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maurice J.","family":"Schoenbechler","sequence":"additional","affiliation":[{"name":"Department of Immunology, Walter Reed Army Institute of Research, Washington, D.C. 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