Pfizer Inc (NYSE PFE) stock is up 1.7% at 27.04atlastcheck,followingnewsalate−stagetrialofitsrespiratorysyncytialvirus(RSV)vaccineAbrysvo generatedanimmuneresponseinhigherriskadultsundertheageof60.Thecompanyplanstoseekexpandedapprovalofthevaccineforages18to59.Sharesarestillstrugglingwithresistanceatthe29 level, which has been in place since January and rejected a mid-March rally off 11-year lows. In the last 12 months, PFE shed 35.3%.Short-term options tr ...