. 2015 Dec 25;8(1):6. doi: 10.3390/v8010006

Table 1.

IC₅₀ and IC₉₀ of quercetin against influenza A virus strains.

Influenza A Virus Strains	Inhibitory Activity (Mean ± S.D.) ^a
	Quercetin
	IC₅₀ (µg/mL)	IC₉₀ (µg/mL)
A/Puerto Rico/8/34 (H1N1)	7.76 ± 1.10	24.58 ± 6.71
A/FM-1/47/1 (H1N1)	6.23 ± 0.47	20.47 ± 3.97
A/Aichi/2/68 (H3N2)	2.74 ± 1.93	8.24 ± 2.84

^a The samples were tested in triplicate, and the data were presented in mean ± S.D. This experiment was repeated three times with similar results. IC₅₀: half maximal inhibitory concentration; IC₉₀: ninety percent inhibitory concentration.