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International Journal of Phytomedicine and Phytotherapy

Table 2 Cell-free inactivation of SARS-CoV-2 titres. Titres of SARS-CoV-2 after incubation with selected herbal extracts for the indicated times. Values are expressed as percentage of the titre after treatment with PBS for 1 h (= 100 %)

From: The potential of herbal extracts to inhibit SARS-CoV-2: a pilot study

  15 min 1 h
BRO TP 88 % 62 %
IMU 60 % 41 %
TOP 70 % 35 %