The past months allowed us to improve our knowledge of putative precipitating factors of
relapses in
multiple sclerosis. Having to take a poll, I would say that the present evidence of an association of relapses of multiple sclerosis is strong for the postāpartum period (Confavreux et al., 1998), is becoming possibly disputable for infections (Sibley et al., 1985; Buljevac et al., 2002), is minor, if any, for trauma (Goodin et al., 1999) and stress (Mohr et al.