Document Type : Letter to Editor


1 Student Research Committee, Iran University of Medical Sciences, Tehran, Iran

2 Department of Emergency Medicine, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran

3 Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran

4 Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran

5 Golestan University of Medical Sciences, Gorgan, Iran


This article has no abstract.


  1. Top CC. Million; Deaths to Reach 750,000 in Days. The Japan Times. 2020.
  2. Coronavirus Disease 2019 (COVID-19) Outbreak. 20 December 2020.
  3. Kalteh EA, Sofizadeh A, Fararooei M, Ghojogh MG, Aljalili S. Measures of Mortality in Coronavirus (COVID-19) Compared with SARS and MERS. Journal of Cellular & Molecular Anesthesia. 2020;5(2):97-101.
  4. Daneshfar M, Dadashzadeh N, Ahmadpour M, Haghi HR, Rahmani V, Frouzesh M, et al. Lessons of mortality following COVID-19 epidemic in the United States especially in the geriatrics. Journal of Nephropharmacology. 2020;10(1):e06-e.
  5. Valizadeh R, Dadashzadeh N, Zakeri R, Kellner SJ, Rahimi MM. Drug therapy in hospitalized patients with very severe symptoms following COVID-19. Med Sci. 2020;35:e79.
  6. Shervani Z, Khan I, Khan T, Qazi UY. COVID-19 Vaccine. Advances in Infectious Diseases. 2020;10(03):195.
  7. Calina D, Docea AO, Petrakis D, Egorov AM, Ishmukhametov AA, Gabibov AG, et al. Towards effective COVID‑19 vaccines: Updates, perspectives and challenges. International journal of molecular medicine. 2020;46(1):3-16.
  8. Spika JS, Wassilak S, Pebody R, Lipskaya G, Deshevoi S, Güriş D, et al. Measles and rubella in the World Health Organization European region: diversity creates challenges. Journal of Infectious Diseases. 2003;187(Supplement_1):S191-S7.
  9. Behrman RE, Vaughan III VC. Nelson textbook of pediatrics: WB Saunders company; 1983.