Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Comparing SARS-CoV-2 case rates between pupils, teachers and the general population: results from Ger-many
Comparative immunogenicity and effectiveness of mRNA-1273, BNT162b2 and Ad26.COV2.S COVID-19 vaccines
Diagnostic accuracy of rapid antigen tests in pre-/asymptomatic close contacts of individuals with a confirmed SARS-CoV-2 infection
Equipment-free detection of SARS-CoV-2 and Variants of Concern using Cas13
Predicting the course of Covid-19 and other epidemic and endemic disease
LACK OF ASSOCIATION BETWEEN CONVALESCENT PLASMA ADMINISTRATION AND LENGTH OF HOSPITAL STAY: A HOSPITAL-DAY STRATIFIED MULTI-CENTER RETROSPECTIVE COHORT STUDY
Predicting pain and function outcomes in people consulting with shoulder pain: The PANDA-S clinical cohort and qualitative study protocol (ISRCTN 46948079)
Estimation and worldwide monitoring of the effective reproductive number of SARS-CoV-2
Characteristics of Patients with Hematologic Malignancies Without Seroconversion Post-COVID19 Third Vaccine Dosing
Heart rate variability as biomarker for bipolar disorder
Extended interval BNT162b2 vaccination enhances peak antibody generation in older people
Detection of SARS-CoV-2 antibodies formed in response to the BNT162b2 and mRNA-1237 mRNA vaccine by commercial antibody tests
Melodic Intonation Therapy for aphasia: A multi-level meta-analysis of randomised controlled trials and individual participant data
Serum Vitamin D levels are associated with increased COVID-19 severity and mortality independent of whole-body and visceral adiposity
Significant and sustained decrease in non-SARS-CoV-2 respiratory viral infections during COVID-19 public health interventions.
Preliminary Rasch analysis of the Multidimensional Assessment of Interoceptive Awareness in adults with stroke
Reduction of exposure to simulated respiratory aerosols using ventilation, physical distancing, and universal masking
Masks in a Post COVID-19 World: A Better Alternative to Curtailing Influenza?
SARS-CoV-2 infection and transmission in school settings during the second wave in Berlin, Germany: a cross-sectional study
Amyloid-associated increases in soluble tau is a key driver in accumulation of tau aggregates and cognitive decline in early Alzheimer
Rapid realist review: Anxiolytic effects of music therapy on mechanically ventilated patients
A machine learning-based holistic approach for diagnoses within the Alzheimer's disease spectrum
Antimicrobial agents for the treatment of enteric fever chronic carriage: A systematic review
Ward-Level Factors Associated with Methicillin-Resistant Staphylococcus aureus Acquisition - an Electronic Medical Records study in Singapore
Hepatitis C virus infection and tobacco smoking - joint health effects and implications for treatment of both: A systematic review
A systematic review and meta-analysis of inpatient mortality associated with nosocomial and community COVID-19 exposes the vulnerability of immunosuppressed adults