The majority of these children reported injection-site pain ( 40/50 [ 80 % ] after dose 1 , 39/46 [ 85 % ] after dose 2 ) and erythema ( 47/50 [ 94 % ] and 40/46 [ 87 % ] , respectively ) ; rates of fever were low ( 5/50 [ 10 % ] and 2/46 [ 4 % ] , respectively ) .