5. Conclusion
Using IVIG is not beneficial for COVID-19 patients based on no
remarkable differences in duration of hospitalization, ICU length of
stay, duration of mechanical ventilation and even mortality rate.
Funding: This study was approved and supported by Tehran
University of Medical Sciences.
Competing interests: The authors declare that they have no
competing interests.
Ethical approval: This project was approved by the
Institutional Review Board of Tehran University of Medical Sciences
[IR.TUMS.VCR.REC.1399.390]