Risk of antibiotic resistant meningococcal infections in Hajj pilgrims.

Competing Interests: Competing interests: The BMJ has judged that there are no disqualifying financial ties to commercial companies. The authors declare the following other interests: AZ and ZM have an interest in mass gatherings medicine. AZ is a member of the PANDORA-ID-NET Consortium funded by Grant RIA2016E-1609 from the European and Developing Countries Clinical Trials Partnership (EDCTP2) programme and is in receipt of a National Institutes of Health Research senior investigator award. The BMJ policy on financial interests is here: https://www.bmj.com/sites/default/files/attachments/resources/2016/03/16-current-bmj-education-coi-form.pdf.