[Use of electron microscopy for the rapid diagnosis of poxvirus diseases (smallpox) in swine].

For a rapid proving of the pig pox virus in the skin of naturally infected pigs, the simple electron microscopic method of negative staining was used. The result was checked by means of the finding of intracytoplasmatic inclusions in the histological sections and the proving of the presence of virions in the ultra-thin sections through the cells of the epidermis.