According to that statement, he was admitted Sunday, October 12th. Over a week ago. It also states that he was an admin person, so it's likely but not certain that his last day at Alcon was Friday, October 10th. Admin people don't usually work weekends.
The wording of the statement reads that he "did not exhibit any symptoms of the Ebola virus." That could mean several things. That he that he seemed completely healthy, or it could be carefully worded to mean that he wasn't well but didn't show symptoms of the "Ebola virus" per se. Or it could simply mean that the Alcon management was told by a third party that he wasn't symptomatic, so they're running with that.
The same careful wording, nearly identical, is used in the email.
The question remains: What is the boyfriend's status?
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Will he be quarantined for 21 days or 42?/s