Veterinary Services: Blastomycosis, histoplasmosis and aspergillosis are common in animals, and antigen testing may permit early diagnosis. miravista offers the following antigen testing: Histoplasma, Blastomyces, Aspergillus. MiraVista also offers the following drug level testing: Drug Level Testing, Itraconazole, Voriconazole, Posaconazole.