SAMHD1 and hepatitis A virus infection: Regarding the antiviral effect of dasatinib, it is important to mention that the role of the cellular restriction factor SAMHD1 is not restricted to RNA viruses (Ballana and Este, 2015) but to DNA viruses including poxviruses (Hollenbaugh et al., 2013), herpes simplex 1 (Kim et al., 2013), and hepatitis B (Chen et al., 2014; Jeong et al., 2016; Sommer et al., 2016).