Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Induction of trained immunity by influenza vaccination - impact on COVID-19
Clinical manifestations and disease severity of SARS-CoV-2 infection among infants in Canada
COVID-19 Vaccine Hesitancy among Marginalized Populations in the U.S. and Canada: Protocol for a Scoping Review
Assessing risk perceptions that contribute to tetanus toxoid maternal vaccine hesitancy in Kilifi County, Kenya
COVID-19 Transmission Dynamics Underlying Epidemic Waves in Kenya
Incorporating Polygenic Risk Scores and Nongenetic Risk Factors for Breast Cancer Risk Prediction among Asian Women, Results from Asia Breast Cancer Consortium
Design and validation of HIV peptide pools for detection of HIV-specific CD4+ and CD8+ T cells
VEGF-C ameliorates lymphatic drainage, portal pressure and ascites in experimental portal hypertension
Toward Using Twitter Data to Monitor Covid-19 Vaccine Safety in Pregnancy
De novo Powered Air-Purifying Respirator Design and Fabrication for Pandemic Response
SARS-CoV-2 IgG seroprevalence in blood donors located in three different federal states, Germany, July 2020 to June 2021-a follow-up
Substance abuse and the risk of severe COVID-19: Mendelian randomization confirms the causal role of opioids but hints a negative causal effect for cannabinoids.
'Like brushing teeth' - Implementation experiences with opt-in, at-home screening for SARS-CoV-2 among schoolchildren in Germany
A Metapopulation Network Model for the Spreading of SARS-CoV-2: Case Study for Ireland
Circulating interleukin-6 levels and incident ischemic stroke: a systematic review and meta-analysis of population-based cohort studies
Factors influencing COVID-19 vaccination uptake in an elderly sample in Poland
Covid-19 and the South Asian Countries: factors ruling the pandemic
Incidence of COVID-19 reinfection among Midwestern healthcare employees
Comparison of respiratory protection during exercising tasks between different wearing methods of replaceable particulate respirators and powered air-purifying respirators
Genome-wide analyses of 200,453 individuals yields new insights into the causes and consequences of clonal hematopoiesis
Sex, Military Occupation, and Rank Are Associated with Risk of Anterior Cruciate Ligament Injury in Tactical-Athletes
Timing and Dose of Pharmacological Thromboprophylaxis in Adult Trauma Patients: Perceptions, Barriers, and Experience of Saudi Arabia Practicing Physicians
Insights from complex trait fine-mapping across diverse populations
Does immune recognition of SARS-CoV2 epitopes vary between different ethnic groups?
Decline in COPD Admissions During the COVID-19 Pandemic Associated with Lower Burden of Community Respiratory Viral Infections
Testing and isolation to prevent overloaded health care facilities and to reduce death rates in the SARS-CoV-2 pandemic in Italy