1. Department of Visual Diagnostics, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan;
2. Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy;
3. PhD School of Experimental Medicine, University of Pavia, Pavia, Italy;
4. Scientific and Practical Center for Sanitary and Epidemiological Expertise and Monitoring, Almaty, Kazakhstan;
5. Department for Quality Control and Safety of Goods and Services of the Turkestan Oblast, Turkestan;
6. Department of Infectious Diseases, IRCCS San Matteo Hospital Foundation, Pavia, Italy;
7. Texas A&M University, College Station, Texas