Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Antibody responses to BNT162b2 vaccination in Japan: Monitoring vaccine efficacy by measuring IgG antibodies against the receptor binding domain of SARS-CoV-2
Impact of close interpersonal contact on COVID-19 incidence: evidence from one year of mobile device data
A Statistical Framework to Identify Cell Types Whose Genetically Regulated Proportions are Associated with Complex Diseases
Blood omega-3 fatty acids and death from COVID-19: A Pilot Study
Estimating Causal Treatment Effects of Femoral and Tibial Derotational Osteotomies on Foot Progression in Children with Cerebral Palsy
COVID-19 infections post-vaccination by HIV status in the United States
The role of CYP2C19 gene polymorphisms on antiplatelet activity of clopidogrel among Arabs: systematic review and meta-analysis
Paramagnetic rim lesions are associated with pathogenic CSF profiles and worse clinical outcomes in multiple sclerosis: a retrospective cross-sectional study
A Coupled Experimental and Statistical Approach for an Assessment of the Airborne Infection Risk in Event Locations
2020 SARS-CoV-2 diversification in the United States: Establishing a pre-vaccination baseline
Prevalence of malnutrition among children at primary cleft surgery: A cross-sectional analysis of a global database
Incidence and Risk Factors of Immediate Hypersensitivity Reactions and Immunisation Stress-related Responses with COVID-19 mRNA Vaccine
Common, low-frequency, rare, and ultra-rare coding variants contribute to COVID-19 severity.
On discrete time epidemic models in Kermack-McKendrick form
Trait, staging, and state markers of psychosis based on functional alteration of salience-related networks in the high-risk, first episode, and chronic stages
Demarcation line determination for diagnosis of gastric cancer disease range using unsupervised machine learning in magnifying narrow-band imaging
Evaluation of Commercial Anti-SARS-CoV-2 Neutralizing Antibody Assays in seropositive subjects
Seasonal variation in SARS-CoV-2 transmission in temperate climates
Urine as a non-invasive alternative to blood for germline and somatic mutation detection in hepatocellular carcinoma
The detection and stability of the SARS-CoV-2 RNA biomarkers in wastewater influent in Helsinki, Finland
Provisional research criteria for the behavioral variant of Alzheimer disease: A systematic review and meta-analysis
Serological prevalence of SARS-CoV-2 infection and associated factors in healthcare workers in a "non-COVID" hospital in Mexico City
Adolescent autism and autoimmune diagnoses linked to infant gut bacteria whose prevalence is associated with at-risk genetics and/or diet
The toll of COVID-19 on African children: A descriptive analysis on the COVID-19-related morbidity and mortality among the pediatric population in Sub-Saharan Africa
Effect of antihypertensive drug treatment on long-term blood pressure reduction: An individual patient-level data meta-analysis of 352,744 Participants from 51 large-scale randomised clinical trials
Internalizing and externalizing behaviors in school-aged children are related to state anxiety during magnetic resonance imaging