Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: The presence of SARS-CoV-2 RNA in different freshwaters of urban settings determined by RT-qPCR: implications for water safety
Quantifying the importance and location of SARS-CoV-2 transmission events in large metropolitan areas
The prevalence, incidence and risk factors of mental health problems and mental health services use before and 9 months after the COVID-19 outbreak among the general Dutch population. A 3-wave prospective study.
Childhood Immuno-metabolic Markers and Risk of Depression and Psychosis in Adulthood: A Prospective Birth Cohort Study
Longitudinal changes in physical activity during and after the first national lockdown due to the COVID-19 pandemic in England
Human Parainfluenza 2 & 4: clinical and genetic epidemiology in the UK, 2013-2017, reveals distinct disease features and co-circulating genomic subtypes
Common and rare variant analyses combined with single-cell multiomics reveal cell-type-specific molecular mechanisms of COVID-19 severity
COVID-19 wastewater based epidemiology: long-term monitoring of 10 WWTP in France reveals the importance of the sampling context
Challenges in defining Long COVID: Striking differences across literature, Electronic Health Records, and patient-reported information
Evaluating the Risk of Psilocybin for the Treatment of Bipolar Depression: A Review of the Research Literature and Published Case Studies
Recognition of Diabetes in a Multi-ethnic Population: Results from a Nationally Representative Population-Based Study
Comparison of two highly-effective mRNA vaccines for COVID-19 during periods of Alpha and Delta variant prevalence
Genotyping and population structure of the China Kadoorie Biobank
Applying the FAIR principles to data in a hospital: challenges and opportunities in a pandemic
Prophylactic Antibiotics in Arteriovenous Fistulae: A systematic Review
Cohort profile: The Australian Parkinson's Genetics Study (APGS)
Environmental surveillance for Salmonella Typhi as a tool to estimate the incidence of typhoid fever in low-income populations
Faster post-malnutrition weight gain during childhood is associated with risk of non-communicable disease in adult survivors of severe malnutrition
Can 10x cheaper, rapid air filtration using a wide range of DIY options complement commercial HEPA purifiers to help control the pandemic?
Automated analysis of PSMA-PET/CT studies using convolutional neural networks
Genetics of Myocardial Interstitial Fibrosis in the Human Heart and Association with Disease
BrainXcan identifies brain features associated with behavioral and psychiatric traits using large scale genetic and imaging data
SARS-CoV-2 vaccination of convalescents boosts neutralization capacity against SARS-CoV-2 Delta and Omicron that can be predicted by anti-S antibody concentrations in serological assays
COVID-19 vaccine hesitancy worldwide: a systematic review of vaccine acceptance rates
Aerosol tracer testing in the cabin of wide-bodied Boeing 767 and 777 aircraft to simulate exposure potential of infectious particulate such as SARS-CoV-2
Time trends and factors related to COVID-19 vaccine hesitancy from January-May 2021 among US adults: Findings from a large-scale national survey