The Flaviviruses (Group B Arboviruses): a Cross-neutralization Study De Madrid, A. T. and Porterfield, J. S.,, 23, 91-96 (1974), doi = https://doi.org/10.1099/0022-1317-23-1-91, publicationName = Microbiology Society, issn = 0022-1317, abstract= SUMMARY Cross-neutralization studies on 42 flaviviruses and their respective antisera were performed by a plaque assay in a line of pig kidney cells. Six tick-borne viruses fell into one subgroup; seven viruses associated with bats and small rodents and a further tick-borne virus fell into a second subgroup. Twenty-two mosquito-borne viruses fell into one major and four minor subgroups. Four mosquito-borne, one tick-borne and one bat virus showed no relationship to any other flavivirus., language=, type=