Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Impact of Asian and black donor and recipient ethnicity on the outcomes after deceased donor kidney transplantation in the United Kingdom
Hepatic resection versus transarterial chemoembolization for the intermediate stage hepatocellular carcinoma：A cohort study
Long-COVID following mild SARS CoV-2 infection: characteristic T cell alterations and response to antihistamines
Microbial GWAS studies revealing combinations of Omicron RBD mutations existed and may contribute to antibody evasion and ACE2 binding
Age-related heterogeneity in Neutralising antibody responses to SARS-CoV-2 following BNT162b2 vaccination
Antibody and T cell responses to Sinopharm/BBIBP-CorV in naive and previously infected individuals in Sri Lanka
Impacts of COVID-19 public measures on country-level trade flows: Global panel regression analysis
SARS-CoV-2 Breakthrough Infections among the Healthcare Workers Post-Vaccination with ChAdOx1 nCoV-19 Vaccine in the South Indian State of Kerala.
Estimating real-world COVID-19 vaccine effectiveness in Israel using aggregated counts
Efficacy and Safety of Viable Selective Germline Genome  Edited Pigs Skin Xenotransplants in Patients with Thermal Burns
Regional opening strategies with commuter testing and containment of new SARS-CoV-2 variants in Germany
COVID-19 in French Nursing Homes during the Second Pandemic Wave: A Mixed-Methods Cross-Sectional Study
Emergence and evolution of Plasmodium falciparum histidine-rich protein 2 and 3 deletion mutant parasites in Ethiopia
Discrimination of sleep and wake periods from a hip-worn raw acceleration sensor using recurrent neural networks
Study on the mucosal and serological immune response to the Novel Coronavirus (SARS-CoV-2) vaccine
The Sequence Effect Worsens over Time in Parkinson's disease and Responds to Open and Closed-Loop Subthalamic Nucleus Deep Brain Stimulation
Over- and under-estimation of vaccine effectiveness
Is Second dose of vaccination useful in previously SARS-CoV-2 infected Health Care Workers?
Variant Creutzfeldt-Jakob Disease: The Challenge of Preventing a Rare but Potentially Devastating Exposure
Prevalence and determinants of peripheral arterial disease in children with nephrotic syndrome
Outcomes Associated with Expanded Take-Home Eligibility for Outpatient Treatment with Medications for Opioid Use Disorder: A Mixed-Methods Analysis
Assay-related Differences in SuPAR Levels: Implications for Measurement and Data Interpretation
Genomics and epidemiology of a novel SARS-CoV-2 lineage in Manaus, Brazil
Analysis of the Second COVID-19 Wave in India and the United Kingdom Using a Birth-Death Model
A rapid, cost efficient and simple method to identify current SARS-CoV-2 variants of concern by Sanger sequencing part of the spike protein gene
Predictors of COVID-19 vaccination uptake and reasons for decline of vaccination: a systematic review