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  • Title: Development and biological properties of a new live attenuated mumps vaccine.
    Author: Saika S, Kidokoro M, Kubonoya H, Ito K, Ohkawa T, Aoki A, Nagata N, Suzuki K.
    Journal: Comp Immunol Microbiol Infect Dis; 2006; 29(2-3):89-99. PubMed ID: 16647119.
    Abstract:
    To develop a new live attenuated mumps vaccine, a wild mumps Y7 strain isolated from a patient who developed mild parotitis was treated with nitrosoguanidine and ultraviolet, followed by selection of a temperature-sensitive clone. The selected clone, Y125, showed stable temperature-sensitivity in Vero cells. Intraspinal inoculation of marmosets with the Y125 produced only minimal histopathological changes, while intracerebral inoculation of neonatal rats revealed that the Y125 did not cause hydrocephalus. Both these effects of the Y125 were similar to those of the non-neurovirulent Jeryl Lynn strain. Furthermore, subcutaneous inoculation of the Y125 induced high levels of neutralizing antibodies in all Cercopithecus monkeys examined. Although the safety and immunogenicity should be confirmed in further field trials in humans, the present results indicate that the Y125 could be a promising vaccine candidate.
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