“…In general, polyanionic compounds exhibit their anti-HIV activity by binding to the V3 domain of gp120 (Baba et al, 1988b;Nakashima et al, 1989;Schols et al, 1991, 1992, Witvrouw et al, 1994. Although the polyanions inhibit the binding of herpesviruses and HIV, and thus indirectly prevent the subsequent fusion process as well, their effects on the replication of influenza virus can be ascribed primarily to inhibition of virus-cell fusion (Lüscher-Mattli & Glück, 1990;Ikeda et al, 1994). The most antivirally effective phenolic polymers were the different salt forms of KOP (sodium-, ammonium-, potassium salt) as well as the copolymers containing KOP (KHYKOP, KGALOP).…”