Centralized switches can monitor several thousand points receiving Wi-Fi signals over several buildings, checking laptops and other devices for viruses and quarantining infected machines.
Allergens need to fall below a certain threshold to alleviate symptoms, and because dander is spread so readily, even quarantining a pet may not do the trick, according to Dr. Diette.
Canadian officials are quarantining pigs that tested positive for the virus -- scientifically known as 2009 H1N1 -- at an Alberta farm in what could be the first identified case of pigs infected during the recent outbreak.