#pasa #pbfd

Beak & Feather Disease (PBFD)/Circo viruses target the precursors of T lymphocytes & macrophages resulting in lymphocyte depletion, thus impaired immunity. This impaired immunity allows the invasion of super- or co-infecting agents (viruses, bacteria, funguses, parasites), which can occur simultaneous with circoviruses induce illnesses and increases severity of circovirus disease. Examples are French molt where […]