Correspondence:
MOHAMMED ALSAEED, MD
Department of Medicine, Infectious Disease Division, Prince Sultan Military Medical City Makkah Al Mukarramah Rd, As Sulimaniyah, Riyadh 12233, Saudi Arabia.
Email: mohalsaeed@live.com
Phone: +966506273469
Acknowledgements: None.
Sources of support: None.
Disclosures of potential conflicts of interest: None.