Arusha, Tanzania – Reliable data is crucial for effective disease surveillance and outbreak response. In the wake of the wild poliovirus outbreak in Malawi in February 2022, neighbouring countries stepped up surveillance to detect cases. They have also rolled out mass vaccination campaigns to protect children from the debilitating virus. In Tanzania, the use of Open Data Kit (ODK) tools is accelerating response to alerts of potential polio cases and helping to curb the virus.
Emmanuel is supporting the national response efforts to fight polio in Tanzania as part of a multi country strategy. Tanzania launched mass vaccination drives in the regions bordering Malawi before expanding across the country to reach all eligible children with the crucial dose. It has already carried out two rounds of polio vaccination.
“I called the vaccinator that observed the case and headed to the field to conduct the appropriate investigation and sample collection to validate the acute flaccid paralysis (AFP) within 24 hours," Emmanuel says.
AFP is defined by the acute onset of weakness or paralysis with reduced muscle tone in children. There are many infectious and non-infectious causes of AFP. Polio, caused by wild poliovirus (the naturally circulating strain) is one cause of AFP, and so early detection of AFP is critical in containing a potential outbreak. Respiratory and stool samples are optimal for enterovirus detection.
An information dashboard provides near real-time geolocation points (marked using the ODK tool) where vaccination posts can be set up, how many health centres have been visited, the quality of markings on houses visited by vaccinators as well as the quality of finger markers used to identify children who have received the vaccine. ODK also allows to easily determine the location of children who have missed their vaccination.
However, the gains of electronic data management are not limited to the fight against polio. Emmanuel notes that with the skills and knowledge acquired in the polio response, he has also been able “to build and introduce similar tools in the routine health care system; specifically, during yellow fever outbreaks or while supporting the tracking of confirmed COVID-19 cases during the pandemic response.”
Polio Eradication Programme
WHO Regional Office for Africa
Email: mongem [at] who.int
Tel: + 34 636 04 76 79