virus virus probable species found mexican state thought main host sequences parts virus based determined differ acid composition composition closely related virus identified new species closely related virus virus virus black creek canal virus found species virus found different population presence different species argument classifying populations host separate species history occurrence virus identified collected survey wild mammals western mexico discovery published colleagues small mammals sin virus found individuals studied rice rat common species found cotton rat mouse addition yielded found males females acid sequences parts virus differed closely related colleagues identified virus found new species called virus authors prove virus fulfilled criteria identifying new virus species argued likely fulfill criteria currently treated probable species genus consists segments single stranded negative sense virus called large medium small segments entire segment fragment segment segment consists bases starting position code protein addition second base open reading frame occurs middle sequence starting position specimens sequence segment differed changes silent segment differ related virus marsh rice rat virus honduras population black creek canal virus cotton rat sequence differs base fragments sequence segment variable sites observed including non silent sequence differs terms terms effects occurs frequently colleagues suggested primary host virus result species occur closely syndrome disease caused sin virus reported mexico found human blood samples wild known species potential risk infection humans discovery species identified mexico canyon virus small relationships according phylogenetic analyses based sequences segments closely related clade formed virus cotton rat colleagues proposed closely related united single species colleagues surprised find species different noted subspecies infected different colleagues suggested basis lines evidence including presence different western mexican populations represent different species
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