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Experimental live tick-borne encephalitis vaccine (Labgat E5 "14" virus clone): volunteers 1 and 2 years after
Acta Virologica
|June 1, 1976
Abstract:
Groups of volunteers given intramuscularly 5 or 6.5 dex or perorally 6.5 dex newborn mouse icLD50 of the plaquesegregated "14" clone of the Langat E5 virus strain (tick-borne encephalitis comples) were followed for periods of 12 and 24-27 months. Circulating specific virus neutralizing antibodies persisted in them in the absence of apparent reaction as evidenced by clinical, electroencephalographic and cerebrospinal fluid findings.