Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: SARS-CoV-2 Delta variant of concern in Brazil - multiple introductions, communitary transmission, and early signs of local evolution
Retinal aging transcriptome and cellular landscape in association with the progression of age-related macular degeneration
Long-term outcome of corneal collagen crosslinking with riboflavin and UV-A irradiation for keratoconus
Histopathological Image Analysis for Oral Squamous Cell Carcinoma classification using concatenated deep learning models
Use of c-peptide as a measure of cephalic phase insulin release in humans
Inflection in prevalence of SARS-CoV-2 infections missing the N501Y mutation as a marker of rapid Delta (B.1.617.2) lineage expansion in Ontario, Canada
Intention of Healthcare Workers to Receive COVID-19 Vaccine: A Cross-Sectional Survey in 10 Countries in Eastern Mediterranean Region
COVID-19 in pregnancy: characteristics and outcomes of pregnant women admitted to hospital because of SARS-CoV-2 infection in the Nordic countries.
Self-reported safety of the BBIBP-CorV (Sinopharm) COVID-19 vaccine among Iranian people with multiple sclerosis
Estimating the proportion of SARS-CoV-2 infections ascertained through diagnostic testing
The required size of cluster randomized trials of non-pharmaceutical interventions in epidemic settings
Adiposity and Glucose Intolerance in Offspring of Diabetic Mothers in India
COVID-19 Associated Pulmonary Aspergillosis: Systematic Review and Patient-Level Meta-Analysis
Female gender, depressive symptoms, manual job, and higher physical disability predict long term low back pain persistence
Effectiveness of the mRNA BNT162b2 vaccine against SARS-CoV-2 severe infections in the Israeli over 60 population: a temporal analysis done by using the national surveillance data.
A New Causal Approach to Account for Treatment Switching in Randomized Experiments under a Structural Cumulative Survival Model
SARS-CoV-2 antibodies detected in human breast milk post-vaccination
Public attitudes towards COVID-19 vaccines in Africa: a systematic review
Efficacy of conservative physiotherapeutic approaches in hormonal-related headaches: a scoping review protocol.
A Platform for Data-centric, Continuous Epidemiological Analyses
Effect of the third dose of BNT162b2 vaccine in quantitative SARS-CoV-2 spike 1-2 IgG antibody titers in healthcare workers
Protective effects of HLA-DRB1*04 subtypes in Parkinson's and Alzheimer's diseases implicate acetylated Tau PHF6 sequences
Virtual Exam for Parkinson's Disease Enables Frequent and Reliable Measurements of Motor Function
Durable Humoral and Cellular Immune Responses Following Ad26.COV2.S Vaccination for COVID-19
Analytical Solution of a New SEIR Model Based on Latent Period-Infectious Period Chronological Order
COVID-19 mortality in Italy varies by patient age, sex and pandemic wave