Instruct: Identify the main category of Medrxiv papers based on the titles.
Query: Vaginal bacterial load in the second trimester is associated with early preterm birth recurrence: a nested case-control study
Ovarian follicular function is not altered by SARS-Cov-2 infection or BNT162b2 mRNA Covid-19 vaccination.
Somatic mutation involving diverse genes leads to a spectrum of focal cortical malformations
Efficacy and safety of a drug-free, barrier-forming nasal spray for allergic rhinitis: randomized, open-label, crossover noninferiority trial
Social-distancing Fatigue: Evidence from Real-time Crowd-sourced Traffic Data
Mendelian Randomization Analysis of the Relationship Between Native American Ancestry and Gallbladder Cancer Risk
The acute lag effects of elevated ambient air pollution on stillbirth risk in Ulaanbaatar, Mongolia
Taking a participatory research approach within workplace health promotion research to improve physical activity levels in office-based workers: a scoping review protocol
Lower help-seeking intentions and subsequent depressive symptoms among adolescents with high autistic traits: A population-based cohort study
"The vaccination is positive; I don't think it's the panacea": A qualitative study on COVID-19 vaccine attitudes among ethnically diverse healthcare workers in the United Kingdom
The Emergence of SARS-CoV-2 Variant Lambda (C.37) in South America
Repeat Subcutaneous Administration of REGEN-COV(R) in Adults is Well-Tolerated and Prevents the Occurrence of COVID-19
Evaluation of saliva self-collection devices for SARS-CoV-2 diagnostics
Affinity tag coating enables reliable detection of antigen-specific B cells in ImmunoSpot assays
Partial lockdown on unvaccinated individuals promises breaking of fourth COVID-19 wave in Bavaria
Emergence and Evolution of Big Data Science in HIV Research: Bibliometric Analysis of Federally Sponsored Studies 2000-2019
Heterogenous Cellular and Humoral Immune Trajectories after SARS-CoV-2 Infection: Compensatory Responses in a Population-Based Cohort
Clinical Validation of Saliency Maps for Understanding Deep Neural Networks in Ophthalmology
Immunogenicity of the Ad26.CoV2.S vaccine in people living with HIV
Projecting the impact of SARS-CoV-2 variants on the COVID-19 epidemic and social restoration in the United States: a mathematical modelling study
Vaccine Effectiveness against Referral to Hospital and Severe Lung Injury Associated with COVID-19: A Population-based Case-control Study in St. Petersburg, Russia
Combined Infection Control Interventions Protect the Essential Workforce from Occupationally-Acquired SARS-CoV-2 during Produce Production, Harvesting and Processing Activities
A Hybrid Machine Learning Framework for Enhancing the Prediction Power in Large Scale Population Studies: The ATHLOS Project
Excessive matrix metalloproteinase-1 and hyperactivation of endothelial cells occurred in COVID-19 patients and were associated with the severity of COVID-19
Vaccine nationalism and the dynamics and control of SARS-CoV-2
Exposure-response analysis of the association of maternal smoking and use of electronic cigarettes (vaping) in relation to preterm birth and small-for-gestational-age in a national US sample, 2016-2018