Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: DEVELOPMENT AND VALIDATION OF AN ENZYME-LINKED IMMUNOASSAY KIT FOR DIAGNOSIS AND SURVEILLANCE OF COVID-19
Safety and immunogenicity of a heterologous boost with a recombinant vaccine, NVSI-06-07, in the inactivated vaccine recipients from UAE: a phase 2 randomised, double-blinded, controlled clinical trial
Estimated SARS-CoV-2 Seroprevalence in Healthy Children and Those with Chronic Illnesses in The Washington Metropolitan Area as of October 2020
Convalescent plasma improves overall survival in patients with B-cell lymphoid malignancies and COVID-19: a longitudinal cohort and propensity score analysis
Inhaled nitric oxide use in COVID19-induced hypoxemic respiratory failure.
Change in Finances, Peer Access, and Mental Health Among Trans and Non-binary People in Canada During COVID-19
Mutation-specific SARS-CoV-2 PCR Screen: Rapid and Accurate Detection of Variants of Concern and the Identification of a Newly Emerging Variant with Spike L452R Mutation
National Trends and Disparities in Hospitalization for Hypertensive Emergencies Among Medicare Beneficiaries, 1999-2019
Association of Systemic immune-inflammation index With Short-Term Mortality of Congestive Heart Failure: A Retrospective Cohort Study
Fixed dosing of tocilizumab in ICU admitted COVID-19 patients is a superior choice compared to bodyweight based dosing; an observational population pharmacokinetic and pharmacodynamic study
The tryptophan catabolite or kynurenine pathway in Alzheimer's disease: a systematic review and meta-analysis.
Mitochondrial DNA copy number and trimethylamine levels in the blood: new insights on cardiovascular disease biomarkers
Fully automatic segmentation of craniomaxillofacial CT scans for computer-assisted orthognathic surgery planning using the nnU-Net framework
Beliefs about Mask Efficacy and the Effect of Social Norms on Mask Wearing Intentions for COVID-19 Risk Reduction
Peripheral optical coherence tomography assisted by scleral depression in retinopathy of prematurity
An empirical assessment of influenza intensity thresholds obtained from the moving epidemic and WHO methods
Increasing coordination and responsivity of emotion-related brain regions with a heart rate variability biofeedback randomized trial
Estimation of real-infection and immunity against SARS-CoV-2 in Indian populations
Human mobility data from the BBC Pandemic project
Mortality reduction in ICU-admitted COVID-19 patients in Suriname after treatment with convalescent plasma acquired via gravity filtration
Identification of Highly Frequent TP53 Germline Variations in a Cohort of Head and Neck Cancer Cases
Clinical evaluation of BCL-2/XL levels pre- and post- HER2-targeted therapy
Serum DNA methylome of the colorectal cancer serrated pathway
SARS-CoV-2 anti-spike antibody levels following second dose of ChAdOx1 nCov-19 or BNT162b2 in residents of long-term care facilities in England (VIVALDI)
MRI Intensity Standardization Evaluation Design for Head and Neck Quantitative Imaging Applications
Variants of SARS-COV-2 and the Death Toll