Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Factors affecting aerosol size distribution during various dental procedures
SARS-CoV-2 positivity in asymptomatic-screened dental patients
Effectiveness of BBIBP-CorV, BNT162b2 and mRNA-1273 vaccines against hospitalisations among children and adolescents during the Omicron outbreak in Argentina
Serendipitous COVID-19 Vaccine-Mix in Uttar Pradesh, India: Safety and Immunogenicity Assessment of a Heterologous Regime
A Genetic Model for Central Chondrosarcoma Evolution Correlates with Patient Outcome
A Viral Fragmentation Signature for SARS-CoV-2 in Clinical Samples Correlating with Contagiousness
Immune profiling demonstrates a common immune signature of delayed acquired immunodeficiency in patients with various etiologies of severe injury
The U-shaped association of serum iron level with COVID-19 severity
Oral Vitamin D supplementation induces transcriptomic changes in rectal mucosa that are consistent with anti-tumour effects.
Maternal underweight and obesity are associated with placental pathologies in human pregnancy
SARS-CoV-2 Delta variant of concern in Brazil - multiple introductions, communitary transmission, and early signs of local evolution
Sustained high prevalence of COVID-19 deaths from a systematic post-mortem study in Lusaka, Zambia: one year later
Diagnostic performance of attenuated total reflection Fourier-transform infrared spectroscopy for detecting COVID-19 from routine nasopharyngeal swab samples
Detection of SARS CoV-2 contamination in the Operating Room and Birthing Room Setting: Risks to attending health care workers
Use of Artificial Intelligence on spatio-temporal data to generate insights during COVID-19 pandemic: A Review
People with HIV Have Higher Risk of COVID-19 Diagnosis but Similar Outcomes than the General Population
Anesthesia Immutable Registry of Real-time Vital Signs and Waveforms using Blockchain
BREAst screening Tailored for HEr (BREATHE) - A Study Protocol On Personalised Risk-based Breast Cancer Screening Programme
Effectiveness of a novel non-intrusive continuous-use air decontamination technology to reduce microbial contamination in clinical settings: A multi-centric study
Persisting pulmonary dysfunction in pediatric post-acute Covid-19
Metal concentrations in breastmilk of Fuzhou nursing mothers associates with dietary and lifestyle factors
Effectiveness of gamified team competition in the context of mHealth intervention for medical interns: a micro-randomized trial
Rapid antigen testing as a reactive response to surges in nosocomial SARS-CoV-2 outbreak risk
Psychometric properties of the Depression Stigma Scale in the Portuguese population and its association with gender and depressive symptomatology
The impact of SARS-CoV-2 vaccination on Alpha and Delta variant transmission
Carbon dioxide, COVID-19 and the importance of restaurant ventilation: a case study from Spain approaching Christmas 2021