Abstract
A new method and equipment for the preparation of potent vaccines completely inactivated by ultraviolet irradiation of continuously flowing thin (less than 1 mm.) films of turbid suspensions of bacteria and viruses for less than one second has been described. 1 We have reported 2 the preparation of highly antigenic, completely inactivated vaccines for rabies and St. Louis encephalitis viruses with this technic. The present paper is a preliminary report on the preparation and antigenic studies of a completely inactivated vaccine prepared from the mouse adapted Lansing strain of poliomyelitis virus which not only evokes the formation of specific neutralizing antibodies in immunized mice but also confers a high degree of protection against subsequent intracerebral inoculation. The complete details of this paper will be published elsewhere. Although there are a few publications 3 of the effectiveness of ultraviolet irradiation in destroying the poliomyelitis virus, to our knowledge no one has
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