169 The inhibition of flavivirus RNA synthesis by the heteropolyanion HPA-23 and related compounds in the in vitro RNA-Dependent RNA polymerase assay: A.Bartholomeusz (1 & 2), P.J.Wright (1), E.Tomlinson (1), Locarnini (2), C.Birch (2), H.Weigold (3), S.Marcuccio (3) & G.Holan (3). (1) Dept. of Microbiology, Monash Univ., Clayton, AUSTRALIA (2) Virology Dept. Fairfield Hosp. Fairfield, AUSTRALIA (3) Division of Chemicals and Polymers CSIRO, AUSTRALIA