[1] Meis RJ, et al. Genetic and molecular biological characterization of a vaccinia virus gene which renders the virus dependent on isatin-beta-thiosemicarbazone (IBT). Virology. 1991 Jun;182(2):442-54. DOI:
10.1016/0042-6822(91)90585-y[2] Katz E, et al. Synthesis of vaccinia virus polypeptides in the presence of isatin-beta-thiosemicarbazone. Antimicrob Agents Chemother. 1973 Jul;4(1):44-8. DOI:
10.1128/AAC.4.1.44[3] Iou-Jiun Kang, et al. Isatin-β-thiosemicarbazones as potent herpes simplex virus inhibitors. Bioorg Med Chem Lett. 2011 Apr 1;21(7):1948-52. DOI:
10.1016/j.bmcl.2011.02.037[4] William D Arndt, et al. Monkeypox virus induces the synthesis of less dsRNA than vaccinia virus, and is more resistant to the anti-poxvirus drug, IBT, than vaccinia virus. Virology. 2016 Oct;497:125-135. DOI:
10.1016/j.virol.2016.07.016 
