Reply: “Vitamin D Supplementation in Influenza and COVID-19 Infections. Comment on: Evidence That Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths Nutrients 2020, 12(4), 988”

We thank Dr [...].

[1]  M. Hadi,et al.  Vitamin D Supplementation in Influenza and COVID-19 Infections Comment on: “Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths” Nutrients 2020, 12(4), 988 , 2020, Nutrients.

[2]  J. Ioannidis,et al.  COVID-19 antibody seroprevalence in Santa Clara County, California , 2020, medRxiv.

[3]  Lynnette Brammer,et al.  Hospitalization Rates and Characteristics of Patients Hospitalized with Laboratory-Confirmed Coronavirus Disease 2019 — COVID-NET, 14 States, March 1–30, 2020 , 2020, MMWR. Morbidity and mortality weekly report.

[4]  M. Alipio.  Vitamin D Supplementation Could Possibly Improve Clinical Outcomes of Patients Infected with Coronavirus-2019 (COVID-2019) , 2020 .

[5]  W. Grant,et al.  Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths , 2020, Nutrients.

[6]  M. Mirsaeidi,et al.  COVID-19 Clinical Characteristics, and Sex-Specific Risk of Mortality: Systematic Review and Meta-Analysis , 2020, Frontiers in Medicine.

[7]  W. Grant,et al.  Vitamin D Supplementation Could Prevent and Treat Influenza, Coronavirus, and Pneumonia Infections , 2020 .

[8]  V. Ganji,et al.  Serum Vitamin D Concentration ≥75 nmol/L Is Related to Decreased Cardiometabolic and Inflammatory Biomarkers, Metabolic Syndrome, and Diabetes; and Increased Cardiorespiratory Fitness in US Adults , 2020, Nutrients.

[9]  M. Vafa,et al.  The effect of vitamin D supplementation on hemoglobin concentration: a systematic review and meta-analysis , 2020, Nutrition Journal.

[10]  S. Wenzel,et al.  High-Dose Vitamin D3 for Critically Ill Vitamin D-Deficient Patients. , 2019, The New England journal of medicine.

[11]  R. Hyzy,et al.  Early High-Dose Vitamin D3 for Critically Ill, Vitamin D-Deficient Patients. , 2019, The New England journal of medicine.

[12]  B. Boucher,et al.  Why Secondary Analyses in Vitamin D Clinical Trials Are Important and How to Improve Vitamin D Clinical Trial Outcome Analyses—A Comment on “Extra-Skeletal Effects of Vitamin D, Nutrients 2019, 11, 1460” , 2019, Nutrients.

[13]  S. Boyd,et al.  Effect of High-Dose Vitamin D Supplementation on Volumetric Bone Density and Bone Strength: A Randomized Clinical Trial. , 2019, JAMA.

[14]  P. Ghezzi,et al.  Vitamins D3 and D2 have marked but different global effects on gene expression in a rat oligodendrocyte precursor cell line , 2019, Molecular Medicine.

[15]  P. Levy,et al.  Vitamin D deficiency and insufficiency among US adults: prevalence, predictors and clinical implications , 2018, British Journal of Nutrition.

[16]  S. Wimalawansa.  Non-musculoskeletal benefits of vitamin D , 2018, The Journal of Steroid Biochemistry and Molecular Biology.

[17]  G. Martin,et al.  High‐Dose Vitamin D3 Administration Is Associated With Increases in Hemoglobin Concentrations in Mechanically Ventilated Critically Ill Adults: A Pilot Double‐Blind, Randomized, Placebo‐Controlled Trial , 2016, JPEN. Journal of parenteral and enteral nutrition.

[18]  S. Kong,et al.  Prevalence and genetic diversity analysis of human coronaviruses among cross-border children , 2017, Virology Journal.

[19]  Timothy J. Cunningham,et al.  Vital Signs: Racial Disparities in Age-Specific Mortality Among Blacks or African Americans — United States, 1999–2015 , 2017, MMWR. Morbidity and mortality weekly report.

[20]  David A. Jolliffe,et al.  Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data , 2017, British Medical Journal.

[21]  M. Loeb,et al.  Effect of Vitamin D3 Supplementation on Respiratory Tract Infections in Healthy Individuals: A Systematic Review and Meta-Analysis of Randomized Controlled Trials , 2016, PloS one.

[22]  J. Binongo,et al.  The effect of a single, large bolus of vitamin D in healthy adults over the winter and following year: a randomized, double-blind, placebo-controlled trial , 2014, European Journal of Clinical Nutrition.

[23]  S. Imam,et al.  Vitamin D deficiency and low hemoglobin level as risk factors for severity of acute lower respiratory tract infections in Egyptian children: A case-control study , 2014 .

[24]  R. Heaney.  Guidelines for optimizing design and analysis of clinical studies of nutrient effects. , 2014, Nutrition reviews.

[25]  P. DePetrillo,et al.  Serum 25-Hydroxyvitamin D and the Incidence of Acute Viral Respiratory Tract Infections in Healthy Adults , 2010, PloS one.

[26]  J. Aloia,et al.  Re: epidemic influenza and vitamin D. , 2007, Epidemiology and infection.

[27]  M. Holick,et al.  Human serum 25-hydroxycholecalciferol response to extended oral dosing with cholecalciferol. , 2003, The American journal of clinical nutrition.