Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Impact of Delta on viral burden and vaccine effectiveness against new SARS-CoV-2 infections in the UK
High correlation between binding IgG (anti-RBD/S) and neutralizing antibodies against SARS-CoV-2 six months after vaccination
Safety, Immunologic Effects and Clinical Response in a Phase I Trial of Umbilical Cord Mesenchymal Stromal Cells in Patients with Treatment Refractory Systemic Lupus Erythematosus
Risk of severe COVID-19 in patients with inflammatory rheumatic diseases treated with immunosuppressive therapy in Scotland
Systemic and mucosal IgA responses are variably induced in response to SARS-CoV-2 mRNA vaccination and are associated with protection against subsequent infection
Machine Learning Generalizability Across Healthcare Settings: Insights from multi-site COVID-19 screening
U.S. adolescents' mental health and COVID-19-related changes in technology use, Fall 2020
Heart rate variability as biomarker for bipolar disorder
A rapid pharmacogenomic assay to detect NAT2 polymorphisms and guide isoniazid dosingfor tuberculosis treatment
Interaction-based feature selection algorithm outperforms polygenic risk score in predicting Parkinson's Disease status
Detection of brain somatic variation in epilepsy-associated developmental lesions
Contamination of personal protective equipment during COVID-19 autopsies
Automatic quantification of brain lesion volume from post-trauma MR Images
Altered Neurotransmitter Ratio in the Prefrontal Cortex is Associated with Pain in Fibromyalgia Syndrome
Intellectual disability and cerebellar hypoplasia in autism reported by associative learning
Brain ageing in schizophrenia: evidence from 26 international cohorts via the ENIGMA Schizophrenia consortium
Two years later - changes in abdominal organs: First observations from the UK Biobank longitudinal imaging study
Use of multiple Polygenic Risk Scores for distinguishing Schizophrenia-spectrum disorder and Affective psychosis categories; the EUGEI study
Socioeconomic, demographic and environmental factors inform intervention prioritization in urban Nigeria
The Characteristic of Auditory Function and Cochlear Pathophysiology in a Noise-exposed Cohort: A Cross-sectional Study
Comorbidities Diminish the Likelihood of Seropositivity After SARS-CoV-2 Vaccination
Pride and adversity among nurses and physicians during the pandemic in two US healthcare systems: a mixed methods analysis
Differences in outcomes following an intensive upper-limb rehabilitation programme for patients with common CNS-acting drug prescriptions.
Microbiome profiles are associated with cognitive functioning in 45-month-old children
Intraoperative Hydromorphone Decreases Post-Operative Pain. Who Would Have Thought? An Instrumental Variable Analysis
What is the suitability of clinical vignettes in benchmarking the performance of online symptom checkers? An audit study