Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: The Delta Variant Had Negligible Impact on COVID-19 Vaccine Effectiveness in the USA
When can we stop wearing masks? Agent-based modeling to identify when vaccine coverage makes nonpharmaceutical interventions for reducing SARS-CoV-2 infections redundant in indoor gatherings
TROPONIN IS INDEPENDENTLY ASSOCIATED WITH DEATH IN PATIENTS WITH COVID: A RETROSPECTIVE STUDY
"At that moment, understanding the donation is crucial to make a decision": A qualitative study exploring the process of postmortem brain tissue donation after suicide
Relationship between the kinematics of wrist/finger joint movements and muscle loading during typing in people with different skill levels
Local patterns of spread of influenza A(H3N2) virus in coastal Kenya over a one-year period revealed through virus sequence data
Suicide and self-harm in low- and middle- income countries during the COVID-19 pandemic: A systematic review
Sleep problems effect on developmental trajectories in children with autism
Declining National Codeine Distribution in United States Hospitals and Pharmacies from 2011 to 2019
Study Pre-protocol for 'BronchStart - The Impact of the COVID-19 Pandemic on the Timing, Age and Severity of Respiratory Syncytial Virus (RSV) Emergency Presentations; a Multi-Centre Prospective Observational Cohort Study'
Assessment of burden and segregation profiles of CNVs in patients with epilepsy
Severity Prediction for COVID-19 Patients via Recurrent Neural Networks
Osteophyte size and location on hip DXA scans are associated with hip pain: findings from a cross sectional study in UK Biobank
Vaccination of Front-Line Workers with the AstraZeneca COVID-19 Vaccine: Benefits in the Face of Increased Risk for Prothrombotic Thrombocytopenia
Self-resetting Molecular Probes for Nucleic Acids Enabled by Fuel Dissipative Systems
Reduced amplification efficiency of the RNA-dependent-RNA-polymerase (RdRp) target enables tracking of the Delta SARS-CoV-2 variant using routine diagnostic tests
A Meta-analysis of Mortality, Need for ICU admission, Use of Mechanical Ventilation and Adverse Effects with Ivermectin Use in COVID-19 Patients
The SARS-CoV-2 receptor angiotensin-converting enzyme 2 (ACE2) in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: analysis of high-throughput epigenetic and gene expression studies
An international, inter-laboratory ring trial confirms the feasibility of an open source, extraction-less "direct" RT-qPCR method for reliable detection of SARS-CoV-2 RNA in clinical samples
COVID-19 severity impacts on long-term neurological manifestation after hospitalisation
Clinical Annotations for Prostate Cancer Research: Defining Data Elements, Creating a Reproducible Analytical Pipeline, and Assessing Data Quality
Functional neural network for decision processing, a racing network of programmable neurons with fuzzy logic where the target operating model relies on the network itself
A Subset of Localized Prostate Cancer Displays an Immunogenic Phenotype Associated with Losses of Key Tumor Suppressor Genes
Bead-assisted SARS-CoV-2 multi-antigen serological test allows effective identification of patients
SARS-CoV-2 B.1.1.7 lineage-related perceptions and travel worry among healthcare workers
Is It Really Musculoskeletal Pain? Differential diagnosis and screening for referral in paediatric musculoskeletal disorders: a scoping review protocol