Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Adaptive vaccination may be needed to extirpate COVID-19: Results from a runtime-alterable strain-drift and waning-immunity model
A new Reproduction Index Ri and its Usefulness for Germany's Covid19-Data
Effects of Transcranial Direct Current Stimulation in Children and Young People with Psychiatric Disorders: A Systematic Review
Professional Commitment and Its Associated Factors Among Institutional Delivery Services Providers In Public Health Facilities, In Shone District, Southern Ethiopia
Genomic diversity and antimicrobial resistance of Prevotella spp. isolated from chronic lung disease airways
Characterisation of the blood RNA host response underpinning severity in COVID-19 patients
Development of low-cost serological immunoassay to detect antiviral antibodies to Sars-Cov-2 Spike protein
COVID-19 vaccine hesitancy and vaccine passports: Vaccination or restriction?
Store-Operated Calcium Entry Controls Innate and Adaptive Immune Cell Function in Inflammatory Bowel Disease
Cytocapsular Tube-Based Precise Cancer Diagnosis in Colon Cancers
Interrogation of T Cell-Enriched Tumors Reveals Prognostic and Immunotherapeutic Implications of Polyamine Metabolism
Effectiveness of Wolbachia-infected mosquito deployments in reducing the incidence of dengue and chikungunya in Niteroi, Brazil: a quasi-experimental study
Comparison of adverse events between COVID-19 and Flu vaccines
An Extended Susceptible-Exposed-Infected-Recovered (SEIR) Model with Vaccination for Forecasting the COVID-19 Pandemic in Sri Lanka
Long-COVID following mild SARS CoV-2 infection: characteristic T cell alterations and response to antihistamines
Refined characterization of circulating tumor DNA through biological feature integration
Evaluation of sleep pattern due to stress in undergraduate medical students and its impact on health and academic performance: A cross-sectional study from tertiary health center of Central India
COVID-19 Prevention Facilitators and Barriers among Specific Ethnic Minority Communities in Rural Ohio
Quantitative measurement of infectious virus in SARS-CoV-2 Alpha, Delta and Epsilon variants reveals higher infectivity (viral titer:RNA ratio) in clinical samples containing the Delta and Epsilon variants.
SARS-CoV-2 Antibody Response in Patients Undergoing Kidney Transplantation
Vitamin D Status: A U-shaped relationship for SARS-CoV-2 seropositivity in UK healthcare workers
COVID-19 vaccine-associated cerebral venous thrombosis in Germany
Function is more reliable than quantity to follow up the humoral response to the Receptor Binding Domain of SARS- CoV-2 Spike Protein after Natural Infection or COVID-19 vaccination
A spectrum of HRCT chest findings in RT-PCR positive asymptomatic COVID-19 patients at a COVID designated hospital in Nepal
"If somebody had told me I'd feel like I do now, I wouldn't have believed them"    Older adults' experiences of the BELL trial: a qualitative study
Target attainment of extended-interval dosing of tobramycin in patients less than five years of age with cystic fibrosis: A pharmacokinetic analysis.