reatened to fine or imprison parents who refuse to vaccinate their children and to prosecute public health workers who fail to report refusals.m roa IRIN News, "Nigeria: Vitamin A Handouts Boost Polio Eradication Efforts," June 14, 2010, http://wwwirinnews.orgireport.aspx?reportid.89470. 1°5 IRIN News, "Ni