We know that some bacteria found on Earth actually grows faster in zero gravity and this poses a huge problem for space stations, long-term space flight and one-fifth the gravity moon colonies. Indeed we need to be thinking on how to deal with run away growth issue and maintain a balance of sorts in our attempts to contain this bacteria or growths.
Abatement containment in Space Colonies will be essential and if we get it wrong on somewhere like Mars there is no way to simply rescue 2-3 people there quickly if things get out of hand. In fact consider if you will Tess Garison