Now the parasites have been found in the Empire State Building, which has lead to more coverage of the problem — even though the bugs there have allegedly been exterminated.
Part of the coverage has been on what is apparently the most effective way to find the pests: specially trained dogs! As you might imagine, an insect that prefers human blood for a meal once every 5 to 10 days has a distinct scent. Dogs can be trained to locate this scent and signal to their handlers. This provides exterminators and inspectors with a way to target the much more accurately than just carpeting an area with chemicals.
Another example of how valuable man’s best friend is to us.



Interesting! I just read recently about home inspectors using dogs to sniff out mold: http://www.catanddoginsurance.com/2010/08/home-inspectors-have-gone-to-dogs.html