Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Microbiota composition in the lower respiratory tract is associated with severity in patients with acute respiratory distress by influenza
Seroprevalence of Antibodies to SARS-CoV-2 among Health Care Workers in Kenya
Effects of testing and vaccination levels on the dynamics of the COVID-19 pandemic and the prospects for its termination
Variant-driven multi-wave pattern of COVID-19 via Machine Learning clustering of spike protein mutations
Modelling, Simulations and Analysis of the First COVID-19 Epidemic in Shanghai
Estimation of the morbidity and mortality of congenital Chagas disease: a systematic review and meta-analysis
A Systematic Review and Meta-analysis of Polycystic Ovary Syndrome and Mental Health among Black Asian Minority Ethnic populations
Ketamine for the multivariate effect of PTSD: Systematic review and meta-analysis
Effects of vaccination against COVID-19 on the emotional health of Peruvian older adults
Implementation, adoption and perceptions of telemental health during the COVID-19 pandemic: a systematic review
Racial differences in white matter hyperintensity burden in aging, MCI, and AD
Undernutrition and associated factors among people living with HIV under NACS assessment in Muchinga Province, Zambia, 2019-2020
The angiotensin type 2 receptor agonist C21 restores respiratory function in COVID19 - a double-blind, randomized, placebo-controlled Phase 2 trial
Genetic and demographic predictors of general reading ability in two cohorts
Association of socioeconomic status with arterial stiffness in older African American and White Adults: The ARIC Study Cohort
Evolution of case fatality rates in the second wave of coronavirus in England: effects of false positives, a Variant of Concern and vaccination.
Characteristics that modify the effect of small-quantity lipid-based nutrient supplementation on child growth: an individual participant data meta-analysis of randomized controlled trials
Adherence trajectory as an on-treatment risk indicator among drug- resistant TB patients in the Philippines
Development of a clinical model to predict vagus nerve stimulation response in pediatric patients with drug-resistant epilepsy
Wastewater to clinical case (WC) ratio of COVID-19 identifies insufficient clinical testing, onset of new variants of concern and population immunity in urban communities
Analysis of fragment ends in plasma DNA from patients with cancer
High School Sports During the CoVID-19 Pandemic: The Impact of Sport Participation on the Health of Adolescents
Patient-reported respiratory outcome measures in the recovery of adults hospitalised with COVID-19: A systematic review and meta-analysis
Mechanism of optimal time-course COVID-19 vaccine prioritization based on non-Markovian steady-state prediction
The potential impact of Omicron and future variants of concern on SARS-CoV-2 transmission dynamics and public health burden: a modelling study
Red cell folate status among a subset of Canadian children with Down Syndrome post-fortification.