tgstation/-tg-station — pull request #3503 by phil235 (2014-04-22 14:55:35+00:00)
Title: Fix for #3052

* Medbots will stop detecting viruses undetectable to Health Analyzers or Pandemic machines.
* Medbots will stop considering 100% harmless beneficial viruses as a disease to cure.
* gives a severity to all standard diseases.
* gives a severity var to symptoms.

Fixes #3052