Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Patterns and persistence of SARS-CoV-2 IgG antibodies in Chicago tomonitor COVID-19 exposure
Influenza A H1N1 mediated pre-existing immunity to SARS-CoV-2 predicts COVID-19 outbreak dynamics
Quantifying political influence on COVID-19 fatality in Brazil
Succinylcholine is Equally Efficient as Rocuronium Bromide in terms of Major Adverse Cardiac Events (MACE)During Off Pump Coronary Artery Bypass Surgery : A Single Centre Study
Patients' satisfaction and quality of clinical laboratory services provision at public health facilities in northeast Ethiopia
Assessment of cardiovascular & pulmonary pathobiology in vivo during acute COVID-19
Self-reported adaptability among postgraduate dental learners and their instructors: accelerated change induced by COVID-19
Returning to the workplace during the COVID-19 pandemic: The concerns of Australian workers
Genetic and demographic predictors of general reading ability in two cohorts
Deep neural network estimated electrocardiographic-age as a mortality predictor
Lockdown babies- Birth and new parenting experiences during the 2020 Covid-19 lockdown in South Africa
Age and product dependent vaccine effectiveness against SARS-CoV-2 infection and hospitalisation among adults in Norway: a national cohort study, July - November 2021.
Circulating metabolic biomarkers consistently predict incident type 2 diabetes in Asian and European populations - a plasma metabolomics analysis of four ethnic groups
Knowledge, Attitude, and Practices towards SARS-COV-2 Infection in the United Arab Emirates Population: a Cross-sectional Survey-based Study
The association between stigmatizing attitudes towards depression and help-seeking attitudes in college students: Baseline results of a randomized controlled trial
One Year of Evidence on Mental Health in the COVID-19 Crisis - A Systematic Review and Meta-Analysis
Frailty in individuals with depression, bipolar disorder and anxiety disorders: longitudinal analyses of all-cause mortality
Distinct components of cardiovascular health are linked with age-related differences in cognitive abilities
Factors associated with COVID-19 vaccine hesitancy in Senegal: a mixed study
Effect of long-term low dose glucocorticoid on children with bronchial asthma
Alterations in resting-state activity and functional connectivity in children with 22q11.2 deletion syndrome
COVID-19 vaccine uptake, predictors of vaccination, and self-reported barriers to vaccination among primary school teachers in Poland
Predicting bloodstream infection outcome using machine learning
Hepatitis B and D: a forecast on actions needed to reduce incidence and achieve elimination
National hospital readiness for COVID-19 in Lesotho: Evidence for oxygen ecosystem strengthening
Early Evidence and Predictors of Mental Distress of Adults One Month in the COVID-19 Epidemic in Brazil