International Journal of Preventive Medicine (Int J Prev Med)2008-78021252021092924602460ENPrivate Academic PracticeHonorary Professor, Dr. DY Patil University, Pune, Maharashtra20210908<span id="page171R_mcid4" class="markedContent"><span dir="ltr">Dear Editor,</span></span><span id="page171R_mcid5" class="markedContent"><span dir="ltr">Poliomyelitis </span><span dir="ltr">is </span><span dir="ltr">a </span><span dir="ltr">preventable </span><span dir="ltr">infection </span><span dir="ltr">by </span><span dir="ltr">vaccine. </span></span><span id="page171R_mcid6" class="markedContent"><span dir="ltr">At </span><span dir="ltr">present, </span><span dir="ltr">natural </span><span dir="ltr">disease </span><span dir="ltr">exists </span><span dir="ltr">in </span><span dir="ltr">some </span><span dir="ltr">countries, </span></span><span id="page171R_mcid7" class="markedContent"><span dir="ltr">especially those in Africa. The vaccine‑associated paralytic </span></span><span id="page171R_mcid8" class="markedContent"><span dir="ltr">poliomyelitis</span><span dir="ltr">(VAPP) </span><span dir="ltr">is </span><span dir="ltr">an </span><span dir="ltr">unwanted </span><span dir="ltr">adverse </span><span dir="ltr">event </span><span dir="ltr">of </span></span><span id="page171R_mcid9" class="markedContent"><span dir="ltr">vaccination. </span></span>http://ijpm.mui.ac.ir/index.php/ijpm/article/view/2460http://ijpm.mui.ac.ir/index.php/ijpm/article/download/2460/717718299