Abstract
The attachment of eastern equine encephalitis virus to chicken embryo fibroblasts was studied at 0 degrees C. The binding specifically responsible for initiating infection was studied in the initial experiments by employing plaque-forming ability as the measured response. Results from these initial studies were closely paralleled in studies of binding of radiolabeled virus under the same conditions. Binding that had occurred at the pH optimum, pH 6.5, could be reversed only at higher pH. The observed pH dependence of virus attachment suggested the interaction of at least two ionizable species in the initial binding of virus to cell, and that one to three attachments must occur between virus and cell prior to infection.
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Selected References
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