The lir,,i do,,c o f ~,accine p roduced a [xx~r r ¢ s l x m ~ v, hereas the second and third do.a=,, rc'~,ulied in largely increa,,+:d m e a n anttl'x',dv tilers. Ninetv-~even per cent, 96". and I00"o of 66 initially antl tx~dy-negative infant,, had developed anlltx>dy to, re,,t'x.'ciiv¢ly, tyt'~,, 3, 4 and 7 after the c , ,mplcte cour',a." of Illlnltlnl… (More)
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