tgstation/-tg-station — pull request #5423 by phil235 (2014-10-22 20:15:33+00:00)
Title: Adding a message to the pandemic computer 

* Adds "No detectable virus in the sample." whenever it cannot detect a virus in the blood sample (either due to stealth or actual lack of virus). This will make stealth virus less confusing to players. this should fix #2602 .

* fixes a missing period.