BMAL1 and infection: Similarly, viral infections are enhanced in Bmal1−/− mice (Edgar et al., 2016), while the magnitude of infection by distinct protozoan parasites, including Plasmodium and Leishmania major also presents significant variation along the day (Kiessling et al., 2017), or even in response to time of feeding (Hirako et al., 2018; Prior et al., 2018).