No funding or sponsorship was received for this study or publication of this article. The authors wish to thank all the individuals and institutions that made this study possible especially the Ministry of Health, Directorate of Epidemiology and Control of Diseases, Directorate of Population, National Institute of Hygiene, and Faculty of Medicine and Pharmacy at Rabat. All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship for this manuscript, take responsibility for the integrity of the work as a whole, and have given final approval for the version to be published.
Conflict of interest
Amine Cheikh, Mouncif Ziani, Zakia Cheikh, Amina Barakat, Omar El Menzhi, Mohammed Braikat, Ali Benomar, Yahya Cherrah, and Amine El Hassani have no competing interests to declare.
Compliance with ethics guidelines
The analysis in this article is based on epidemiological data from the databases of the Directorate of Epidemiology and Control of Diseases, and does not involve any new studies of human or animal subjects performed by any of the authors.
Authors’ contributions
AC and ZC participated in the design of the study, literature search, statistical analysis, and writing the paper. MZ provided the Directorate of Epidemiology and Control of Diseases database and explanations. MB provided the Directorate of Population database and the elements necessary to the discussion, reading, and correcting (expert of the Ministry of Health and World Health Organization). AB participated in reading and correcting the paper (specialist in infectious diseases). YC and AH participated in reading and correcting the paper. All authors read and approved the final manuscript.