Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: SARS-CoV-2 infections in 171 countries and over time
Updated projections for COVID-19 omicron wave in Florida
Evidence for lower threshold for diagnosis of hypertension: inferences from an urban-slum cohort in India
The Impact of Mass Exodus on the Resurgence of COVID19 Cases: Study Case of Regions in Indonesia
Spatiotemporal changes in along-tract profilometry of cerebellar peduncles in cerebellar mutism syndrome
Matrix metalloproteinase 2 and 9 enzymatic activities are selectively increased in the myocardium of Chronic Chagas Disease cardiomyopathy patients: role of TIMPs
Machine learning approach to dynamic risk modeling of mortality in COVID-19: a UK Biobank cohort study
Hot days and Covid19 - unusual heat stress for nursing professions in Germany
Gout and coronavirus disease-19 (COVID-19): the risk of diagnosis and death in the UK Biobank
The French domestic "sanitary pass" did not solve Covid-19 vaccination inequities in France
Equally low blood metal ion levels at 10-years follow up of total hip arthroplasties with Oxinium, CoCrMo and stainless steel femoral heads. Data from a randomized clinical trial
Spatial equity of COVID-19 vaccination services in Aotearoa
Rare Variants in Inborn Errors of Immunity Genes Associated with Covid-19 Severity
Decreased door-to-balloon time in patients with ST-segment elevation myocardial infarction during the early COVID-19 pandemic in South Korea - an observational study
Prevalence of diabetes and prediabetes among Bangladeshi adults and associated factors: Evidence from the Demographic and Health Survey, 2017-18
Exploring patient experiences and concerns in the online Cochlear Implant community: a natural language processing approach
A Randomized Placebo-Controlled Trial of Sarilumab in Hospitalized Patients with Covid-19
Plasmodium falciparum malaria during pregnancy: the impact of parasitaemia and anaemia on birthweight
Transmission of SARS-CoV-2 within households: a prospective cohort study in the Netherlands and Belgium - Interim results
Deploying wearable sensors for pandemic mitigation
Evaluation of accuracy, exclusivity, limit-of-detection and ease-of-use of LumiraDx™ - Antigen-detecting point-of-care device for SARS-CoV-2
Genomic Epidemiology of SARS-CoV-2 in Esteio, Rio Grande do Sul, Brazil
Evaluation of viral loads in patients with SARS-CoV-2 Delta variant infection: Higher loads do not translate into different testing scenarios
Clinical outcomes in vaccinated individuals hospitalized with Delta variant of SARS-CoV-2
Methylome-wide association study of early life stressors and adult mental health reveals a relationship between birth date and cell type composition in blood
Effectiveness of Covid-19 Vaccines in the United States Over 9 Months: Surveillance Data from the State of North Carolina