Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Optimal design for phase 2 studies of SARS-CoV-2 antiviral drugs
May we overcome the current serious limitations for distributing reconstituted mRNA vaccines?
The mystery of COVID-19 reinfections: A global systematic review and meta-analysis of 577 cases
Sero-prevalence of anti-SARS-CoV-2 antibodies in Chattogram Metropolitan Area, Bangladesh
Long Term Physical, Mental and Social Health Effects of COVID-19 in the Pediatric Population: A Scoping Review
A systematic review and meta-analysis of Long COVID symptoms
Prevalence of sleep disturbance and associated risk factors in UK Biobank participants with alcohol use disorders and major depression
An Integrated Molecular Atlas of Alzheimer's Disease
Using routine emergency department data for syndromic surveillance of acute respiratory illness in Germany, week 10-2017 to 10-2021
Impact of the COVID-19 pandemic and response on the utilisation of health services during the first wave in Kinshasa, the Democratic Republic of the Congo
Saliva swabs are the preferred sample for Omicron detection
Trends of COVID-19 pediatric admissions number during the first 24 weeks of COVID-19 vaccination in Rio de Janeiro, Brazil
Motivators and barriers to research participation for individuals with cerebral palsy and their families
Scoping Review and Interpretation of Myofascial Pain/Fibromyalgia Syndrome: An Attempt to Assemble a Medical Puzzle
Dementia is strongly associated with medial temporal atrophy even after accounting for neuropathologies
COVID-19 PREDICTION IN SOUTH AFRICA: ESTIMATING THE UNASCERTAINED CASES- THE HIDDEN PART OF THE EPIDEMIOLOGICAL ICEBERG
Evaluating the Long-Term Efficacy of COVID-19 Vaccines
The mortality risk factor of severe community-acquired pneumonia (SCAP) patients with Sepsis: a retrospective study
Predictors of SARS-CoV-2 infection following high-risk exposure: a test-negative design case-control study
A blood-based miRNA signature predicts immunotherapy efficacy in advanced stage non-small cell lung cancer
De novo variants in the PSMC3 proteasome AAA-ATPase subunit gene cause neurodevelopmental disorders associated with type I interferonopathies.
Resting-State Amygdala Subregion and Precuneus Connectivity Provide Evidence for a Dimensional Approach to Studying Social Anxiety Disorder
Evidence of transmission from fully vaccinated individuals in a large outbreak of the SARS-CoV-2 Delta variant in Provincetown, Massachusetts
Liver Echinococcosis Lesion Classification Tool by Deep Learning: development, deployment, and validations
Phase Shift Between Age-Specific COVID-19 Incidence Curves Points to a Potential Epidemic Driver Function of Kids and Juveniles in Germany
Durability of antibody responses and frequency of clinical and subclinical SARS-CoV-2 infection six months after BNT162b2 COVID-19 vaccination in healthcare workers