Abstract
Summary
The size of infectious bovine rhinotracheitis virus grown in bovine kidney tissue culture, based on ultracentrifugation results is between 145–156 mμ in diameter. Electron microscopical examination of infectious fluids revealed particles of 136 ± 10.8 mμ in diameter. Similar particles were observed intracellularly in ultrathin sections of the infected human amnion cells in tissue cultures.
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