This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Diseases of Swine . en Secondary cultures of fetal porcine kidney cells infected with PPV and examined by IF microscopy hours after infection culture fixed and then reacted with fluorescent antibodies FA hours after infection culture reacted with FA and then fixed only extracellular antigen and antigen in cells with disrupted