(July 11, 2019, 12:46 PM EDT) -- PHILADELPHIA — A Pennsylvania federal judge presiding over the Zostavax multidistrict litigation on July 8 ordered Merck & Co. Inc. to produce adverse event data about alleged injuries caused by the shingles vaccine (In Re: Zostavax [Zoster Vaccine Live] Products Liability Litigation, MDL Docket No. 2848, No. 19-md-2848, E.D. Pa.)....