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  • Title: Schistosoma mansoni and S. japonicum: comparison of levels of ultraviolet irradiation for vaccination of mice with cercariae.
    Author: Ruppel A, Shi YE, Moloney NA.
    Journal: Parasitology; 1990 Aug; 101 Pt 1():23-6. PubMed ID: 2122396.
    Abstract:
    When cercariae of Schistosoma mansoni and of S. japonicum were irradiated with various levels of u.v. light at 254 nm, their development to perfusable worms was reduced to below 1% at about 200 microW min cm-2. Cercariae attenuated with about 300 microW min cm-2 induced partial resistance against an homologous challenge infection in mice. No differences were observed between the two schistosome species when the same treatment was given to the cercariae. Thus the same u.v. dose can confer immunizing ability to cercariae of both S. mansoni and S. japonicum.
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