Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
K18.1AF0123369606env   
K18.1AF3330729606gag   
K18.1AF3330729606pol   
K18.1AF3330729606env   

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002