id author title date pages extension mime words sentences flesch summary cache txt cord-003187-qdbcdn2j Bassi, Maria Rosaria Extinction of Zika Virus and Usutu Virus by Lethal Mutagenesis Reveals Different Patterns of Sensitivity to Three Mutagenic Drugs 2018-08-27 .txt text/plain 6701 337 41 Although the two viruses are inhibited by the same three drugs, ZIKV is relatively more susceptive to serial passage in the presence of purine analogues (favipiravir and ribavirin), while USUV replication is suppressed more efficiently by 5-fluorouracil. We observe that ribavirin, favipiravir, and 5-fluorouracil are all inhibitors of both ZIKV and USUV, and that consecutive passage of virus in the presence of these drugs can lead to the complete extinction of infectivity. To investigate whether ZIKV replication could be affected by increased mutagenesis, we tested four different compounds known to be mutagenic for diverse viruses, 5-fluorouracil, ribavirin, favipiravir, and decitabine (25, 32, 35, (37) (38) (39) . To investigate whether the antiviral activities observed during treatment with favipiravir, ribavirin, and 5-fluorouracil are connected to their predicted mutagenic activity, we analyzed the mutation frequencies of both ZIKV and USUV rescued after 5 passages in the presence of these compounds. ./cache/cord-003187-qdbcdn2j.txt ./txt/cord-003187-qdbcdn2j.txt