Transforming Data into Action for Every Life Stage.

23rd April 2026

Shemsa Ramadhani, a health provider and data officer at Selem Health Centre in Zanzibar, is using digital tools to strengthen vaccination tracking and improve community care.

Transforming Data into Action for Every Life Stage.

At Selem Health Centre in Zanzibar, Shemsa Ramadhani, a dedicated health provider and data officer, proudly reflects on how digital innovation has reshaped the way vaccination and immunization data
are tracked and managed. “Before, we used to record vaccination data on paper,” she recalls. “But through the SLL Project, we now capture data digitally, even during mobile clinic outreach services.”

This upgraded system equipped with GPS and photo features has transformed accuracy and transparency in vaccine delivery. “Now, we can record real-time information for every vaccination given in the community,” Shemsa explains. “Whether it’s a child receiving routine immunizations, a student getting adolescent vaccines, or a mother completing her Tetanus (TT) doses every record is instantly updated and safely stored.”

This upgraded system equipped with GPS and photo features has transformed accuracy and transparency in vaccine delivery. “Now, we can record real-time information for every vaccination given in the community,” Shemsa explains. “Whether it’s a child receiving routine immunizations, a student getting adolescent vaccines, or a mother completing her Tetanus (TT) doses every record is instantly updated and safely stored.”

Through this improved data management approach, 194 health workers and community health care workers have been trained in digital data tools, life-course immunization, and data quality improvement. These advancements ensure that no one is left behind, and every vaccination across all age groups is captured accurately.

Thanks to the Mastercard Foundation’s support through the SLL Project, health workers like Shemsa are using real-time data to strengthen immunization and vaccination programs protecting children, students,
and mothers across Zanzibar.

Shemsa Ramadhani, a health provider and data officer at Selem Health Centre in Zanzibar, is using digital tools to strengthen vaccination tracking and improve community care.
Shemsa Ramadhani, a health provider and data officer at Selem Health Centre in Zanzibar, is using digital tools to strengthen vaccination tracking and improve community care.
Shemsa Ramadhani (left), a health provider and data officer at Selem Health Centre in Zanzibar, engages with Amina Sufian, Amref Tanzania Regional Project Officer (Zanzibar), on using digital tools to strengthen vaccination tracking and improve community care.
Shemsa Ramadhani (left), a health provider and data officer at Selem Health Centre in Zanzibar, engages with Amina Sufian, Amref Tanzania Regional Project Officer (Zanzibar), on using digital tools to strengthen vaccination tracking and improve community care.


The Mastercard Foundation’s support through the SLL Phase II initiative, in collaboration with Africa CDC and implementing partners including Amref Health Africa and the Ministry of Health, continues to strengthen health systems across Zanzibar. Through this partnership, health workers are enhancing immunization services and improving access to quality care for high-risk and vulnerable communities, ensuring better health outcomes for all.

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