The present invention provides a method for replicating virus to high titer in cultured mammalian cells by infecting the mammalian cells with the high titer virus strain to obtain infected cells, specifically, attenuated dengue virus strains of serotype 1, 2, 3, and 4. The resulting replicated virus is suitable for use in vaccines and vaccination methods which are also provided by the invention.

De onderhavige uitvinding voorziet een methode om virus aan hoge titer in beschaafde zoogdiercellen te herhalen door de zoogdiercellen te besmetten van de hoge spanning van het titervirus om besmette cellen te verkrijgen, specifiek, de verminderde spanningen van het knokkelkoortsvirus van serotype 1..2..3, en 4. Het resulterende herhaalde virus is geschikt voor gebruik in vaccins en inentingsmethodes die ook door de uitvinding worden verstrekt.

 
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