NFE2L2 and viral infectious disease: Based on these results, we assumed that if the ratio between Nrf2 and H3K9ac/H3K18ac was arbitrarily set as 1 (Nrf2 : H3K9ac/H3K18ac = 1) in the control, the ratio would be less than 1 (Nrf2 : H3K9ac/H3K18ac < 1) in the virus-infected cells, suggesting that the virus infection reduced the association ratio between Nrf2 and H3K9ac/H3K18ac.