Assertion: infection | /r/CapableOf | occur outside the u.s.
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Source sentences:
text: Although the virus may have been present in the United States as early as 1966, the vast majority of infections occurring outside sub-Saharan Africa (including the U.S.) can be traced back to a single unknown individual who became infected with HIV in Haiti and then brought the infection to the United States at some time around 1969.