V I Levinson

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Ribosomal vaccine from Sh. sonnei injected subcutaneously once or twice in physiological saline or in Freund's complete adjuvant produces a marked protective effect against experimental keratoconjunctivitis in guinea pigs. Inhibition of the protective effect by high doses (above 100 microgram) of ribosomal vaccine is evident after a single, but not repeated(More)
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