{"doi":"10.1001/jama.2021.11880","title":"Long-term Symptoms After SARS-CoV-2 Infection in Children and Adolescents","abstract":"Discussion | In this study, initial vaccine-elicited neutralizing antibody titers were negatively associated with age, resulting in a diminished ability to neutralize SARS-CoV-2 in vitro. Neutralizing titers against P.1 were reduced across all ages, although the magnitude of the age-dependent difference was smaller. Interim clinical trial data did not identify age as a contributing factor to overall vaccine efficacy. 1 However, recent studies in vaccinated populations have found a measurable increase in COVID-19 cases among vaccinated older adults. 3,4 The data from the current study are consistent with neutralizing antibody levels playing an important role in this observation.","journal":"JAMA","year":2021,"id":146221,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":245,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9498,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":621260,"name":"Agnė Ulytė","orcid":"0000-0001-7419-9778","position":1,"is_corresponding":false},{"id":87028,"name":"Milo A. Puhan","orcid":"0000-0003-4721-1879","position":2,"is_corresponding":false},{"id":38836,"name":"Susi Kriemler","orcid":"0000-0002-3384-7940","position":3,"is_corresponding":false},{"id":621259,"name":"Thomas Radtke","orcid":"0000-0002-1723-1070","position":0,"is_corresponding":true}],"reference_count":9,"raw_metadata":null,"created_at":"2026-07-18T23:42:18.947086Z","pmid":"34264266","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}