The Saudi Arabian government and the World Health Organization (WHO) have announced plans to expand the Hajj health card program.

The program, which is based on the public key architecture of the WHO's Global Digital Health Certification Network (GDHCN), will be extended to accommodate the three million pilgrims who visit Mecca each year for the Islamic faith.

The cards summarise a range of critical health information, including medication needs, allergies, immunisation status, and pre-existing conditions.

The intention is to give individuals agency over their own health information during their visit to Saudi Arabia, allowing them to provide authorised health providers with up-to-date information when they require care.

The announcement follows a successful trial during the 2024 pilgrimage season in June, which saw 250,000 pilgrims from three countries – Indonesia, Malaysia, and Oman – issued with the cards.

“This exciting partnership between the Kingdom of Saudi Arabia and the World Health Organization to expand the Hajj health card initiative enhances the safety and wellbeing of millions of pilgrims,” said Dr Hanan Balkhy, WHO Regional Director for the Eastern Mediterranean. “By leveraging digital health solutions, we strengthen quality of care, and help strengthen health systems in the Eastern Mediterranean region and around the world.”

Heat stress is a common health concern for pilgrims undertaking Hajj, with the Saudi government warning of temperatures as high as 44°C (111°F) during the 2024 pilgrimage season.