Morphological, cytological and biological observations on viruses isolated from patients with subacute thyroiditis de Quervain.

New data on viruses isolated from patients with subacute thyroiditis de Quervain are reported. Characteristic morphological, cytological, some physico-chemical and biological features of the isolated viruses are described. A possible role of these viruses in human and animal health disorders is discussed. The isolated viruses remain unclassified so far.