Bed Bug Dog False Negative
Adam's specially trained dog detects bed bugs by their scent in the same way other dogs effectively detect drugs, bombs, cadavers, mold, and termites. A dog's sense of smell is up to 100,000 times more sensitive than a human's and they can be trained to identify bed bugs and viable eggs by their scent.
A well-trained bed bug detection dog should be able to identify very small numbers of live bed bugs, sometimes as few as one. Additionally, the dogs should be able to discriminate live bugs and viable eggs from evidence left over from an old infestation (fecal spotting, caste skins, empty egg shells, carcasses).
Diagnosing Giardia infections in dogs and cats is not always a straightforward endeavor. Owners commonly associate Giardia with diarrhea, but the list of diseases that can cause pets to develop that symptom is seemingly endless, and not every animal with Giardia in its intestinal tract becomes sick.
False positives can be worrisome, especially when it comes to medical tests. Researchers are consistently trying to identify reasons for false positives in order to make tests more sensitive. A related concept is a false negative, where you receive a negative result when you should have received a positive one.
False Positive and False Negative Results in Heartworm Disease Testing Heartworm antigen testing is perceived to be very accurate and precise, with specificity and sensitivity values for most tests reported to be >95%, and with specificity and sensitivity data approaching 100% when three or more adult worms are present.
New York Times profiles toasted dogs as the loyal, nontoxic mascots of the anti-bedbug crusade, nature's friendliest creature guarding us against one of her nastiest. It was too good to be true. Gradually, reports surfaced of embarrassing canine detection gaffes, false positives as well as false negatives.