On August 16 , 2011 , the search for Ep13 ended .
On June 15 , 2011 , at the Field Station , personnel determined that Ep13 , a non-infected female rhesus macaque , was missing .
On August 16 , 2011 , the search for rhesus macaque ended .
On June 15 , 2011 , at the Field Station , personnel determined that Ep13 , a non-infected female rhesus macaque , was missing .