Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Association of ABO blood group with COVID-19 severity, acute phase reactants and mortality
Heterologous prime-boost vaccination with ChAdOx1 nCoV-19 and BNT162b2 mRNA
Higher case fatality rate among obstetric patients with COVID-19 in the second year of pandemic in Brazil: do new genetic variants play a role?
Cerebral Organoids Containing an AUTS2 Missense Variant Model Microcephaly
Correlates of circulating extracellular vesicle cargo with key clinical features of type 1 diabetes
An investigation of spatial-temporal patterns and predictions of the COVID-19 pandemic in Colombia, 2020-2021
Did social factors buffer against the effect of adversities on self-harm during the COVID-19 pandemic? A longitudinal analysis of 49,227 UK adults
Mental health assessment of Israeli adolescents before and during the COVID-19 pandemic
Acceptability of COVID-19 vaccination among health care workers in Ghana
Computer adaptive testing to assess impairing behavioral health problems in emergency department patients
Staffing and Capacity Planning for SARS-CoV-2 Monoclonal Antibody Infusion Facilities: A Performance Estimation Calculator based on Discrete-Event Simulations
Associations of insomnia on pregnancy and perinatal outcomes: Findings from Mendelian randomization and conventional observational studies in up to 356,069 women
Socioeconomic changes predict genome-wide DNA methylation in childhood
Relationships between freezing of gait severity and cognitive deficits in Parkinson's disease
The PUPPY Study - Protocol for a Longitudinal Mixed Methods Study Exploring Problems Coordinating and Accessing Primary Care for Attached and Unattached Patients Exacerbated During the COVID-19 Pandemic Year
Use of Baricitinib in Treatment of COVID-19: A Systematic Review
Depression Symptoms during the COVID-19 Pandemic among Well-Educated, Employed Adults with Low Infection Risks
On mobility trends analysis of COVID-19 dissemination in Mexico City
Differential overlap in human and animal fecal microbiomes and resistomes in rural versus urban Bangladesh
Burden of predominant psychological reactions among the healthcare workers and general during COVID-19 pandemic phase: a systematic review and meta-analysis
Heterogeneity in COVID-19 Pandemic-Induced Lifestyle Stressors Predicts Mental Health in Adults and Children in the US and UK
It's possibly made us feel a little more alienated: How people from ethnic minority communities conceptualise COVID-19 and its influence on engagement with testing.
Social mixing patterns relevant to infectious diseases spread by close contact in urban Blantyre, Malawi.
Microbial GWAS studies revealing combinations of Omicron RBD mutations existed and may contribute to antibody evasion and ACE2 binding
Brain Networks Associated With COVID-19 Risk: Data From 3,662 Participants
A joint spatial marked point process model for dengue and severe dengue in Medellin, Colombia.