Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Use of an extended KDIGO definition to diagnose acute kidney injury in patients with COVID-19: A multinational study of the ISARIC cohort
Antibody Response to COVID-19 vaccination in Patients Receiving Dialysis
COVID-19 vaccine effectiveness against severe disease from the Omicron BA.1 and BA.2 subvariants: surveillance results from southern Sweden, December 2021 to March 2022
Change in age distribution of COVID-19 deaths with the introduction of COVID-19 vaccination
Educational attainment as a modifier of the effect of polygenic scores for cardiovascular risk factors: cross-sectional and prospective analysis of UK Biobank
Global research priorities for COVID-19 in maternal, reproductive and child health: results of an international survey
Stakeholders' perception of possible integration pathways for eye health into school health programme in Zanzibar: a qualitative health system research
Divergent lineages of pathogenic Leptospira species are widespread and persisting in the environment in Puerto Rico, USA
The minor allele of the CREBRF rs373863828 p.R457Q coding variant is associated with reduced levels of myostatin in males: Implications for body composition
A behavioural modelling approach to assess the impact of COVID-19 vaccine hesitancy
Experiences of supported isolation in returning travellers during the early COVID-19 response: an interview study
Initiation and completion of treatment for latent tuberculosis infection in migrants globally: A systematic review and meta-analysis
Cost saving in primary versus tertiary level of reproductive health services in Sana'a, Yemen
Disentangling sex differences in the shared genetic architecture of posttraumatic stress disorder, traumatic experiences, and social support with body size and composition
Evaluating COVID-19 reporting data in the context of testing strategies across 31 LMICs
Covid-19 High Attack Rate Can Lead to High Case Fatality Rate
Gut-bladder axis syndrome associated with recurrent UTIs in humans
The Association Between Threatened Miscarriage And Development Of Gestational Hypertension/Pre-Eclampsia
Viral Cultures for Assessing Airborne Transmission of SARS-CoV-2: a Systematic Review Protocol
Effectiveness of non-pharmaceutical measures (NPIs) on COVID-19 in Europe: A systematic literature review
Protection of previous SARS-CoV-2 infection is similar to that of BNT162b2 vaccine protection: A three-month nationwide experience from Israel
Female gender, depressive symptoms, manual job, and higher physical disability predict long term low back pain persistence
Optical coherence tomography assessment of axonal and neuronal damage of the retina in patients with familial and sporadic multiple sclerosis
A Novel and Expanding SARS-CoV-2 Variant, B.1.1.318, dominates infections in Mauritius
SARS-CoV-2 reinfections during the first three major COVID-19 waves in Bulgaria
Community level misconception about COVID-19 and its associated factors: Evidence from a cross-sectional study in Bangladesh