What do they do? I check the Newbie Faq and they arent listed there. Do they only prevent plagues on the planet they are placed? (that would be useless!)
Anyhow the gist is this, I have one Med Lab II In every system I control right now. on turn X i get a message 'new virus detected' blah blah blah, will turn into level II plague. Ok, so double check my system, yep got a level II Med Lab which prevents/ (cures?) level 2 plauges. Anyhow I upgrade it to level III just in case. 3 Turns later I get the plague message, level II plague has broken out etc. I double check my planet, and yes, upgreaded to Level III Med lab.
Next turn the planets population expired from the plague
Any ideas?