Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: The 1st year of the COVID-19 epidemic in Estonia: an interrupted time series of population based nationwide cross-sectional studies.
Original antigenic sin responses to heterologous Betacoronavirus spike proteins are observed in mice following intramuscular administration, but are not apparent in children following SARS-CoV-2 infection
Diabetes-related excess mortality in Mexico: a comparative analysis of national death registries between 2017-2019 and 2020
Using Population Based Kalman Estimator to Model COVID-19 Epidemics in France: Estimating the Effects of Non-pharmaceutical Interventions on the Dynamics of Epidemics.
Grandparental Childcare During the Pandemic and Effects on Mental Health: Evidence From England
Health workers Motivators to uptake of the Covid-19 vaccine at Iganga Hospital Eastern Uganda, and Mengo Hospital Kampala Uganda; A qualitative study
Combining Tumor Segmentation Masks with PET/CT Images and Clinical Data in a Deep Learning Framework for Improved Prognostic Prediction in Head and Neck Squamous Cell Carcinoma
Medical students' perception of live lectures compared to video lectures in basic sciences medical education: a cross-sectional survey of medical colleges in Pakistan
Real-world response of COVID-19 patients in Mexico
Non-Markovian modelling highlights the importance of age structure on Covid-19 epidemiological dynamics
The "Great Lockdown": Inactive Workers and Mortality by Covid-19
Anatomical Predictors of Left Internal Carotid Artery Catheterization in Transradial Angiography
The clinically extremely vulnerable to COVID: Identification and changes in health care while self-isolating (shielding) during the coronavirus pandemic
Feasibility of a novel non-invasive swab technique for serial whole-exome sequencing of cervical tumors during chemoradiation therapy
Pre-diagnostic plasma metabolomics and the risk of exfoliation glaucoma
Characterizing menstrual bleeding changes occurring after SARS-CoV-2 vaccination
Toward a preventive approach to prolonged grief disorder in palliative care: Insecure attachment moderates the impact of perceived support on the severity of symptoms
Robust methylation-based classification of brain tumors using nanopore sequencing
Problems with Evidence Assessment in COVID-19 Health Policy Impact Evaluation (PEACHPIE): A systematic review of study design and evidence strength
CD19+IgD+CD27- naive B Cells as predictors of humoral response to COVID 19 mRNA vaccination in immunocompromised patients
Epidemiology and transmission of COVID-19 in cases and close contacts in Georgia in the first four months of the epidemic
What is the extent of COVID-19 vaccine hesitancy in Bangladesh? : A cross-sectional rapid national survey
Prospective validation of smartphone-based heart rate and respiratory rate measurement algorithms
Comparing the impact of vaccination strategies on spread of COVID-19, including a novel household-targeted vaccination strategy
Brain atrophy in prodromal synucleinopathy is shaped by structural connectivity and gene expression
Impairment in acquisition of conditioned fear in schizophrenia: a pooled analysis of four studies