Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Lower Risk of Multisystem Inflammatory Syndrome in Children (MIS-C) with the Delta and Omicron variants of SARS-CoV-2
Parental perspectives on the grief and support needs of children and young people bereaved during the Covid-19 pandemic: Qualitative findings from a national survey
Spike-antibody responses following first and second doses of ChAdOx1 and BNT162b2 vaccines by age, gender, and clinical factors - a prospective community cohort study (Virus Watch)
Inactivated virus vaccine BBV152/Covaxin elicits robust cellular immune memory to SARS-CoV-2 and variants of concern
A Bayesian hierarchical model with integrated covariate selection and misclassification matrices to estimate neonatal and child causes of death
No evidence of significant cross-reactivity between the dengue virus (DENV) and SARS-CoV-2 IgG antibodies
Impact of supplementary air filtration on airborne particulate matter in a UK hospital ward
Altered EEG markers of synaptic plasticity in a human model of NMDA receptor deficiency: anti-NMDA receptor encephalitis
DeepCOVID: An Operational Deep Learning-driven Framework for Explainable Real-time COVID-19 Forecasting
Neutralizing response against E484K variant after original SARS-CoV-2 infection
Australia's worsening mental health - what's next?
SARS-CoV-2 detection in wastewater as an early warning: the case of metropolitan area of the city of Buenos Aires (AMBA).
Using Machine Learning to Predict Mortality for COVID-19 Patients on Day Zero in the ICU
Precise blood proteome profiling in an undiagnosed population with COVID-19.
COVID-19 in New York state: Effects of demographics and air quality on infection and fatality
POST-ACUTE SEQUELAE AND ADAPTIVE IMMUNE RESPONSES IN PEOPLE LIVING WITH HIV RECOVERING FROM SARS-COV-2 INFECTION
Evaluating Semantic Similarity Methods for Comparison of Text-derived Phenotype Profiles
Prognostic and Immunological Significance of ARID1A Status in Endometriosis-Associated Ovarian Carcinoma
New Insight into the Neural Mechanisms of Migraine in Adolescents: Relationships with Sleep
A role for super-spreaders in carrying malaria parasites across the months-long dry season
GPS-estimated foot traffic data and venue selection for COVID-19 serosurveillance studies
Clinical interpretation of machine learning models for prediction of diabetic complications using electronic health records
SARS-CoV-2 new infections among health care workers after the first dose of the BNT162b2 mRNA Covid-19 Vaccine. A hospital wide cohort study
Men and sexual and reproductive healthcare in the Nordic countries: a scoping review
High-frequency screening combined with diagnostic testing for control of SARS-CoV-2 in high-density settings: an economic evaluation of resources allocation for public health benefit
Midwives attitudes toward participation of pregnant women in a preventive vaccine hypothetical clinical trial