04000257 is referenced by 17 patents and cites 1 patents.

A process for producing high potency influenza vaccines with low pyrogenicity and low endotoxicity involves treating concentrated allantoic fluid (CAF) containing an attenuated virus sequentially with butyl acetate and ethyl acetate followed by flash evaporation.

Title
Process for the purification of influenza virus vaccine
Application Number
5/642942
Publication Number
4000257
Application Date
December 22, 1975
Publication Date
December 28, 1976
Inventor
Francis Robert Cano
Spring Valley
NY, US
Agent
Neal O Willmann
Assignee
American Cyanamid Company
CT, US
IPC
A61K 39/18
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