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Cytobios. 1987;49(196):49-55.

Cross-infection enhancement among African flaviviruses by immune mouse ascitic fluids.


Cross-infection enhancement of seven African flaviviruses by subneutralising concentrations of antibody in immune ascitic fluids was investigated in P388D1 cell culture. Infection by all the seven flaviviruses tested was enhanced by homologous and at least one of six heterologous immune mouse ascitic fluids (IMAF) tested. Enhancement ratios and enhancing antibody titres were higher in homologous than in heterologous enhancement. Zika, Wesselsbron, Uganda S and West Nile viruses were enhanced in culture by all the IMAF tested. Enhancement of Dakar bat and Yellow fever viruses was produced by five heterologous IMAF, but Potiskum virus was enhanced by one heterologous flavivirus antibody. The antibody to Potiskum virus was the most potent mediator of heterologous infection enhancement; all six heterologous flaviviruses were markedly enhanced by this antibody.

[Indexed for MEDLINE]

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