Oct 21 (Reuters) - GSK plc: * GSK: SHINGRIX NEW PREFILLED SYRINGE PRESENTATION RECEIVES POSITIVE CHMP OPINION * GSK: SHINGRIX NEW PREFILLED SYRINGE EU MARKETING AUTHORISATION EXPECTED IN DECEMBER Source text: Further company coverage: (The article has been published through a syndicated feed. Except for the headline, the content has been published verbatim. Liability lies with original publisher.)