![Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis](https://www.mdpi.com/pathogens/pathogens-11-00563/article_deploy/html/images/pathogens-11-00563-g003.png)
Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis
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C.I.B, MultiCH, EuW'21, HJCH, HCH, HSCH, 2x HGrCH, SKCH, SKGrCH, SLOCH, SRBCH, SRBGrCH, HRCH, ÖCH, ROCH, ROCHCL Chicago Bear from Castle "Giorgio"
Full article: Exploring the COVID-19 vaccine candidates against SARS-CoV-2 and its variants: where do we stand and where do we go?
![Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis](https://www.mdpi.com/pathogens/pathogens-11-00563/article_deploy/html/images/pathogens-11-00563-g001-550.jpg)