![Viruses | Free Full-Text | Risk Factors of Severe COVID-19: A Review of Host, Viral and Environmental Factors Viruses | Free Full-Text | Risk Factors of Severe COVID-19: A Review of Host, Viral and Environmental Factors](https://www.mdpi.com/viruses/viruses-15-00175/article_deploy/html/images/viruses-15-00175-g001.png)
Viruses | Free Full-Text | Risk Factors of Severe COVID-19: A Review of Host, Viral and Environmental Factors
![Impact of health and lifestyle food supplements on periodontal tissues and health - Spahr - 2022 - Periodontology 2000 - Wiley Online Library Impact of health and lifestyle food supplements on periodontal tissues and health - Spahr - 2022 - Periodontology 2000 - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/f7b93dc8-2df0-4252-a785-95e33bdc4168/prd.v90.1.cover.jpg?trick=1674813954547)
Impact of health and lifestyle food supplements on periodontal tissues and health - Spahr - 2022 - Periodontology 2000 - Wiley Online Library
![Beyond Cytomegalovirus and Epstein-Barr Virus: a Review of Viruses Composing the Blood Virome of Solid Organ Transplant and Hematopoietic Stem Cell Transplant Recipients | Clinical Microbiology Reviews Beyond Cytomegalovirus and Epstein-Barr Virus: a Review of Viruses Composing the Blood Virome of Solid Organ Transplant and Hematopoietic Stem Cell Transplant Recipients | Clinical Microbiology Reviews](https://journals.asm.org/cms/asset/d716a7bb-0aba-4afc-a14d-e4b85dc10696/cmr.2020.33.issue-4.cover.gif)