I'm surprised this has taken so long to hit the media, there's only been the odd story tucked here and there in newspapers and on TV.
Bedbugs have been exploding for more than two years now in all larger cities in North America. I've had friends in condos & apartments get them, a relative got them in their home and most every apartment building is dealing with them, including mine - but many won't talk about it.
Once these get into a hotel, cruise ship, condo, townhouse complex or apartment they can spread rapidly by moving along electrical conduit, plumbing closets & water lines, up HVAC units etc. They find their food source as they are drawn by your breath, that's how they track you down and how they move. All they need to enter your home is so much as a crack as thin as a piece of paper and they're in. I know a lot about these things, I'm on the Tenant's Association in my building and took a seminar with Toronto Public Health about a year & a half ago. We meet with the landlord every two months and as of September this building is clear - as far as they know. Luckily our landlord has been incredible with both response time and helping residents move, bag and trash their treasures to prepare for the first of two spray treatments. They also immediately notify all surrounding suites and offer treatment as a preventative measure along with sealing (caulking) all access points including electrical/cable/telephone switches, along baseboards, around ceiling light fixtures etc. I did my place myself, it took me six weeks and around 30 tubes of caulking (2 bedroom apartment) as I moved foot by foot and sealed every single crack and crevice in every room to help prevent them from coming in as the two floors below me had several infested suites, but at the other end of the hall.
These things are hell, the amount of work involved to get rid of them successfully is massive not to mention the emotional and financial toll that they take. You can move, but you'd end up taking them with you. During the day they mostly hide near or in your bed but as the infestation grows (and it happens rapidly) they can be found in your books, dressers, paintings, electronic devices, curtains - everywhere.
Educate yourselves about these things, soon you'll be dealing with them or at least you'll know someone who is or has.
http://www.toronto.ca/health/bedbugs/
http://thebedbugresource.com/phpBB2/