PPSC Personal Staff Officer (BS-17) S&GAD 2020, Everyday Science MCQs, PPSC Solved Past Papers MCQsTreatment through vaccination was founded by? Posted on April 8, 2021 by Rana TahirA. Louis Pasture B. Edward Jenner C. Jones Salk D. None of theseShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)
