Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Signatures of mast cell activation are associated with severe COVID-19
Regional probabilistic situational awareness and forecasting of COVID-19
Depressive Symptoms and Negative Experiences in School: A Network Analysis
Exploring the impact of shielding advice on the health and wellbeing of individuals identified as extremely vulnerable and advised to shield in Southwest England amid the COVID-19 pandemic: A mixed-methods evaluation
Infant RSV immunoprophylaxis changes nasal epithelial DNA methylation at six years of age
Accessibility of Canadian COVID-19 Testing Locations for People with Disabilities During the Third Wave of the COVID-19 Pandemic
Using big data analytics to explore the relationship between government stringency and preventative social behaviour during the COVID-19 pandemic in the United Kingdom
Multi-omics insights into the biological mechanisms underlying gene-by-lifestyle interactions with smoking and alcohol consumption detected by genome-wide trans-ancestry meta-analysis
Estimates and determinants of SARS-CoV-2 seroprevalence and infection fatality ratio using latent class analysis: the population-based Tirschenreuth study in the hardest-hit German county in spring 2020
1H-NMR metabolomics-based surrogates to impute common clinical risk factors and endpoints
Impact of different diagnostic measures on drug class association with dementia progression risk: a longitudinal prospective cohort study
Bibliometric analysis of parental anxiety and postpartum depression across the perinatal period from 1920-2020: A protocol
Risk factors for workplace bullying, severe psychological distress, and suicidal ideation during the COVID-19 pandemic: a nationwide internet survey for the general working population in Japan
Non-inferiority of essential medicines for caries arrest and prevention in a school-based program: Results from the CariedAway pragmatic clinical trial
A standardized analytics pipeline for reliable and rapid development and validation of prediction models using observational health data
Genetic influences on the intrinsic and extrinsic functional organizations of the cerebral cortex
Transmission of SARS-CoV-2 Considering Shared Chairs in Outpatient Dialysis: A Real-World Case-Control Study
Timely referral for advanced therapy in Parkinsons disease. Development of a screening tool
''Time does not heal all wounds'': Sexual victimisation is associated with depression, anxiety and PTSD in old age
Symptomatic and asymptomatic transmission of SARS-CoV-2 in K-12 schools, British Columbia, April to June 2021
Post-acute sequelae of COVID-19 and adverse psychiatric outcomes: an etiology and risk systematic review protocol
Predicting sex, age, general cognition and mental health with machine learning on brain structural connectomes
Network analysis shows decreased ipsilesional structural connectivity in glioma patients
Cancer services during the COVID-19 pandemic: systematic review of patients' and caregivers' experiences
Changes in dispensing of medicines proposed for re-purposing in the first year of the COVID-19 pandemic in Australia
A systematic scoping review on the impact of the COVID-19 quarantine on the psychological wellbeing of medical students.