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Table 2 Limited virucidal activity of glutardialdehyde and formaldehyde against duck hepatitis B virus (DHBV) depending on concentration and contact time in comparison to vaccinia virus (VACV)/modified vaccinia Ankara strain (MVA)

From: Does limited virucidal activity of biocides include duck hepatitis B virucidal action?

Biocide Concentration (%) Contact time (min) Reduction factors
DHBV VACV/MVA
Glutardialdehyde 0.05 0.5 2.79 ± 0.78 1.62 ± 0.25/1.14 ± 0.29
  2 4.05 4.35/≥3.82
  5 4.05 4.35/≥3.82
0.1 0.5 4.05 2.91±0.22 / 2.21±0.25
  2 4.05 4.35 / ≥3.82
  5 4.05 4.35 / ≥3.82
Formaldehyde 0.7 5 2.00 ± 0.40 1.15 ± 0.28/≥2.09
  30 3.06 >2.62/>2.14
   60 3.08 >3.16/>2.14
  1. Results for VACV and MVA are given as means calculated from the results of three different laboratories (Rabenau et al. [10]).
  2. “≥” - Determination of RF is limited by hepatocytotoxic reactions and/or the amount. Calculation of 95% confidence interval is not possible.