Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: The unexpected dynamics of COVID-19 in Manaus, Brazil: Was herd immunity achieved?
COVID-19 Disease Model with Reservoir of Infection : Cleaning Surfaces and Wearing Masks Strategies
Seroprevalence of SARS-CoV-2 during pregnancy and associated outcomes: results from an ongoing prospective cohort study, New York City
COVID-19 vaccination acceptance among healthcare workers in Germany
An in-depth analysis of phosphorylated tau in amyotrophic lateral sclerosispost-mortem motor cortex and cerebrospinal fluid
Clinical Determinants and Predictors for Prognosis of SARS-CoV-2 Infected Pediatric Patients in Saudi Arabia
Is vitamin D deficiency associated with the COVID-19 epidemic in Europe?
Building Back Better after COVID-19: a systematic scoping review of wicked problems affecting developed countries and implications for global governance
Brain predictors of fatigue in Rheumatoid Arthritis: a machine learning study
Dynamics of amygdala connectivity in bipolar disorders: A longitudinal study across mood states
London Ramadan Fasting Study (LORANS): Rationale, design, and methods
Field performance evaluation of the PanBio rapid SARS-CoV-2 antigen assay in an epidemic driven by 501Y.v2 (lineage B.1.351) in the Eastern Cape, South Africa
Confidence in government and rumors amongst international migrant workers involved in dormitory outbreaks of COVID-19: A cross-sectional survey
Prevalence of anxiety, depression, and stress among teachers during the COVID-19 pandemic: Systematic review
Accelerometer-derived sleep onset timing and cardiovascular disease incidence: a UK Biobank cohort study
Dense phenotyping from electronic health records enables machine-learning-based prediction of preterm birth
Extent of MGMT promoter methylation modifies the effect of temozolomide on overall survival in patients with glioblastoma: a regional cohort study in Southeast Scotland
PLWHA's Perspective on Community Stigma for Getting Social Support and Improving Life Quality in the Digital Era
Who was wearing a mask in 2021? Update on gender-, age-, and location-related differences during the COVID-19 pandemic
School and community reopening during the COVID-19 pandemic: a mathematical modeling study
Cost-effectiveness of psychosocial assessment for individuals who present to hospital following self-harm in England: a model-based retrospective analysis
The interleukin-6/interleukin-23/Thelper-17-axis as a driver of neuro-immune toxicity in the major neurocognitive psychosis or deficit schizophrenia: a precision nomothetic psychiatry analysis.
Effectiveness of lower limb rehabilitation protocol using mobile health on quality of life, functional strength and functional capacity among knee osteoarthritis patients who were overweight and obese: A randomized controlled trial
Temporal Analysis of Social Determinants Associated with COVID-19 Mortality
Genome-wide significant risk loci for mood disorders in the Old Order Amish founder population
Clinical characterization and Genomic analysis of COVID-19 breakthrough infections during second wave in different states of India