[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"flu-vaccine\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:flu-vaccine":39},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":4,"hasResults":10,"nctId":11,"briefTitle":12,"officialTitle":12,"acronym":4,"eligibilityCriteria":13,"healthyVolunteers":14,"sex":15,"minAge":16,"maxAge":17,"enrollmentInfo":18,"targetDuration":4,"studyType":21,"phases":4,"briefSummary":22,"conditions":23,"keywords":4,"overallStatus":27,"whyStopped":4,"lastUpdateSubmitDate":28,"lastUpdatePostDateStruct":29,"startDateStruct":32,"completionDateStruct":34,"leadSponsor":36,"locationsCount":5},"100406989",false,"NCT04579588","Understanding Immunity to the Flu Vaccine in COVID-19 Patients","Inclusion Criteria:\n\n* Age 9 through 64 years\n* Diagnosed with COVID-19 at least 2 months prior enrollment\n* Patients with or without obesity, diabetes, chronic fatigue and\u002For long term COVID-19 symptoms\n* Patients without COVID-19 diagnosis for controls\n\nExclusion Criteria:\n\n* Received the influenza vaccine less than 4 months ago\n* Pregnant or lactating\n* Patients with special risks attendant to venipuncture\n* Use of immunomodulatory medications that may impact vaccine immune response per clinician's judgment\n* Contraindication to the flu vaccine\n* Immunodeficiency or autoimmune disease that may impact vaccine immune responses per clinician's judgement",true,"ALL","9 Years","64 Years",{"count":19,"type":20},230,"ESTIMATED","OBSERVATIONAL","The purpose of this study is to measure immunity to the flu vaccine over time in patients who have had COVID-19 and may have other medical conditions including obesity, type 2 diabetes, chronic fatigue, or long-term COVID-19 symptoms. Adults and children (age 9 to 64) who had been diagnosed with COVID-19 as well as controls without COVID-19 will be invited to participate in this study.",[24,25,26],"Corona Virus Infection","Flu Vaccine","Immunity","RECRUITING","2026-03-16",{"date":30,"type":31},"2026-03-18","ACTUAL",{"date":33,"type":31},"2020-10-29",{"date":35,"type":20},"2028-04",{"name":37,"class":38},"Stanford University","OTHER",""]