I also think that I may have dirofilara. How have you been diagnosed with dirofilaria? I know there are no tests for humans. A veterinarian did a Knott test to me, but does not work on humans. Please let me know where you were tested, what is the name of this test and what symptoms do you have exactly. Thank you. ivermectin did not help me either. DEC can not get anywhere in Europe. There are currently tests with moxidectin against filariae, you can try it.