Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Comparison of the reactogenicity and immunogenicity of a reduced and standard booster dose of the mRNA COVID-19 vaccine in healthy adults after two doses of inactivated vaccine.
Statistical framework for studying the spatial architecture of the tumor immune microenvironment
Casirivimab and imdevimab for the treatment of hospitalized patients with COVID-19
Relationship between common polymorphisms of NRAMP1 gene and pulmonary tuberculosis in Lorestan LUR population
Generalized Prediction of Hemodynamic Shock in Intensive Care Units
Both COVID-19 infection and vaccination induce high-affinity cross-clade responses to SARS-CoV-2 variants
Clinical Validation of Automated and Rapid mariPOC SARS-CoV-2 Antigen Test
Estimates of the impact on COVID-19 deaths of unequal global allocations of vaccines
Study design: Validation of clinical acceptability of deep-learning-based automated segmentation of organs-at-risk for head-and-neck radiotherapy treatment planning.
Effect of removing race correction factor in glomerular filtration rate estimation on predicting acute kidney injury after percutaneous coronary intervention
The Actual Conditions of Person-to-Object Contact and a Proposal for Prevention Measures During the COVID-19 Pandemic
SARS-CoV-2 re-infection risk in Austria
Comparison of Carotid Intima Media Thickness between Women with History of Preeclampsia and Normal Pregnancy: A Meta-Analysis of Systematic Review
T-cell responses to acute cardiorespiratory or resistance exercise in cohorts of physically active or physically inactive older adults: A randomized complete crossover
Implementation of Unassisted and Community-Based HIV Self-Testing (HIVST) during the COVID-19 pandemic among Men-who-have-sex-with-Men (MSM) and Transgender Women (TGW): A Demonstration Study in Metro Manila, Philippines
Downsizing of contact tracing during COVID-19 vaccine roll-out
Limited recovery from post-acute sequelae of SARS-CoV-2 (PASC) at eight months of a prospective cohort
Morphological changes after cranial fractionated photon radiotherapy: localized loss of white matter and grey matter volume with increasing dose
Mutation hotspots, geographical and temporal distribution of SARS-CoV-2 lineages in Brazil, February 2020 to February 2021: insights and limitations from uneven sequencing efforts
Prospective screening of liver fibrosis in a primary care cohort using systematic calculation of fib-4 in routine results
The Omega-3 Index is Inversely Associated with the Neutrophil-Lymphocyte Ratio in Adults
Evaluating the trade-off between transmissibility and virulence of SARS-CoV-2 by mathematical modeling
The Understanding persistent Pain Where it ResiDes study of low back pain cohort profile
A fourth dose of the mRNA-1273 SARS-CoV-2 vaccine improves serum neutralization against the delta variant in kidney transplant recipients
Absence of Excess Mortality in a Highly Vaccinated Population During the Initial Covid-19 Delta Period.
Early stopping in clinical PET studies: how to reduce expense and exposure