1887

Abstract

SUMMARY

An ammonium deoxycholate fraction from bromelain-treated influenza A virus was highly enriched for virus nucleoprotein and contained residual haemagglutinin (NP/HA). The preparation did not contain detectable levels of matrix or neuraminidase proteins and was free of infectious virus. NP/HA effectively primed mice for cytotoxic T cells which lysed syngeneic cells infected with any type A influenza virus. Furthermore, NP/HA generated A-type virus cross-reactive cytotoxic T cells when added to spleen cells from mice previously primed with infectious influenza A virus. These properties imply that NP/HA has potential as a vaccine for heterotypic influenza A immunity.

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/content/journal/jgv/10.1099/0022-1317-66-6-1327
1985-06-01
2023-02-04
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