Speed Trio FeLV/FIV/Corona technology enables the simultaneous detection of soluble viral antigens specific to feline leukemia virus, antibodies directed against feline immunodeficiency virus, and antibodies directed against feline coronavirus. When to use Speed Trio FeLv/FIV/Corona Speed Trio FeLV/FIV/CoronaTM is a rapid test to assist veterinarians in narrowing down the diagnosis in the face of nonspecific symptoms that suggest the presence of a retrovirus and/or coronavirus, and to determine additional clinical examinations. In environments with many cats, it can be used to determine the status of new arrivals to prevent healthy cats from being exposed to the virus. Speed FeLV/FIV/CoronaTM is recommended for monitoring cats living in high-risk environments.