Above: The Fox Hole Radio built with a WWII-era âbluedâ razor blade and pencil lead for the detector. Note the bamboo coil form and the paper clip attached to a cork used to slide along the coil turns to tune the radio. The orange wire goes to the antenna, the black wire to ground.
FIV is diagnosed with a âsnapâ test, usually in combination with the Felv test. A positive FIV test almost always indicates active infection. The exception is young kittens born to an FIV positive queen. Young kittens possess antibodies to FIV from mom, but may not actually have the disease. So, if you have an FIV positive kitten, before panicking, have the kitten retested at 6 months of age.
FeLV test risks. The most significant findings of the Levy study pertained to FeLV. Both the Witness and VetScan Rapid lateral flow tests demonstrated relatively poor specificity for FeLV, which means they generated false-positive results for healthy, uninfected cats. The SNAP FIV/FeLV Combo Test generated zero false-positive results. For instance, a test with 95% specificity falsely identified 5 out of 100 healthy cats as infected. This has increasing importance when screening for a disease that has a low prevalence in the population.