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Abstract zur Publikation: Intra-nasal infection of macaques with Yellow Fever (YF) vaccine strain 17D: a novel and economical approach for YF vaccination in man

Niedrig M, Stolte N, Fuchs D, Hunsmann G, Stahl-Hennig C (1999): Intra-nasal infection of macaques with Yellow Fever (YF) vaccine strain 17D: a novel and economical approach for YF vaccination in man
Vaccine 17 (9-10): 1206-1210.

Investigating new and simple application routes for YF vaccine, four groups of 4-6 rhesus monkeys were vaccinated with live attenuated 17D YF-vaccine. In two groups the vaccine was administered either as spray into the oral cavity, or as an encapsulated form directly into the stomach. Only one out of eight animals developed a humoral immune response against 17D. In the third group receiving the vaccine intranasally by spray and in the fourth group serving as control all ten monkeys developed an immune response. From all except one of these seroconverted monkeys virus could be detected either by virus reisolation or RT-PCR. All these animals showed a serological immune response in immunofluorescence and neutralisation test. Parallel to viremia, an increase of neopterin as an unspecified immune activation marker could be demonstrated for these animals. Intra-nasal application of 17D-vaccine seems to be a good alternative to subcutaneous immunisation in mass vaccination campaigns.

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