Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: COVID Symptoms, Symptom Clusters, and Predictors for Becoming a Long-Hauler:Looking for Clarity in the Haze of the Pandemic
Covid-19 in the Phase 3 Trial of mRNA-1273 During the Delta-variant Surge
Should COVID-specific arrangements for abortion continue? The views of women experiencing abortion in Britain during the pandemic.
Leveraging fine-mapping and non-European training data to improve trans-ethnic polygenic risk scores
High SARS-CoV-2 attack rates following exposure during five singing events in the Netherlands, September-October 2020
Genomic monitoring unveils a high prevalence of SARS-CoV 2 Omicron Variant in vaccine breakthrough cases in Bahia, Brazil
Meta-Analysis of Risk of Vaccine-Induced Immune Thrombotic Thrombocytopenia Following ChAdOx1-S Recombinant Vaccine
Role of COVID-19 vaccinal status in admitted children during OMICRON variant circulation in Rio de Janeiro, city- Preliminary report
Serological Response to BNT162b2 and ChAdOx1 nCoV-19 Vaccines in Patients with Inflammatory Bowel Disease on Biologic Therapies; A Multi-Center Prospective Study
Variation in the reporting of elective surgeries and its influence on patient safety indicators
Is any job better than no job? A systematic review
A joint hierarchical model for the number of cases and deaths due to COVID-19 across the boroughs of Montreal
Mask mandate and use efficacy for COVID-19 containment in US States
Increased hazard of death in community-tested cases of SARS-CoV-2 Variant of Concern 202012/01
Phased implementation of COVID-19 vaccination: rapid assessment of policy adoption, reach and effectiveness to protect the most vulnerable in the US
Somatic activating BRAF variants cause isolated lymphatic malformations
Quantifying the role of naturally- and vaccine-derived neutralizing antibodies as a correlate of protection against COVID-19 variants
Interplay between mosaic chromosomal alterations and polygenic risk score increases risk of non-small cell lung cancer
Effect of reduction in brain amyloid levels on change in cognitive and functional decline in randomized clinical trials: an updated instrumental variable meta-analysis
Interpretation of temporal and spatial trends of SARS-CoV-2 RNA in San Francisco Bay Area wastewater
First detection of SARS-CoV-2 Delta variant (B.1.617.2) in the wastewater of (Ahmedabad), India
Considering the methodological limitations and external validity issues of pharmacological drug trials in adult ADHD: An umbrella review (Open Protocol)
Toward Development of Guidelines for Virtual Administration of Paediatric Standardized Language and Literacy Assessments: Recommendations for Clinicians and Researchers
COVID-19 Prevention Beliefs and Practices in College Students
SARS-CoV-2 Mortality Surveillance among Community Deaths brought to University Teaching Hospital Mortuary in Lusaka, Zambia, 2020
Genomic Surveillance in Japan of AY.29--A New Sub-lineage of SARS-CoV-2 Delta Variant with C5239T and T5514C Mutations