The Kilombero River, near Ifakara, marks the border between the Tanzanian districts of Kilombero and Ulanga. (Photo: Christian Heuss)
Swiss TPH
The fish-filled waters of the Kilombero River ensure the livelihoods of many in Ifakara. (Photo: Christian Heuss)
Christian Heuss / Swiss TPH
Each day, many migrant workers cross the Kilombero River to Ifakara. (Photo: Christian Heuss)
Christian Heuss / Swiss TPH
The Ifakara Health Institute's mosquito breeding programme provides a basis for research on tropical diseases, such as malaria. (Photo: Christian Heuss)
Swiss TPH
Thanks to the research efforts of the IHI, cases of malaria in the Ifakara region are in decline. (Photo: Christian Heuss)
Christian Heuss / Swiss TPH
Marcel Tanner during an inspection in Bagamoyo. (Photo: Peter Jaeggi)
Swiss TPH
Doctor Omari (right), a researcher at IHI, shares the secrets of African medicinal plants with Marcel Tanner.
Swiss TPH
In rural Tanzania, many health centres are only equipped in a rudimentary fashion. (Photo: Swiss TPH)
Swiss TPH
The IHI also works to care for the health of mothers and infants. (Photo: Joachim Pelikan)
Swiss TPH / Joachim Pelikan
In the Tanzanian countryside, most families must get by on less than a dollar per day. (Photo: Christian Heuss)
Christian Heuss / Swiss TPH
Marcel Tanner visits a health centre. (Image: Swiss TPH)
Swiss TPH
Marcel Tanner speaks with Bill Gates in Bagamoyo. The Bill and Melinda Gates Foundation is financing the development of a vaccine through the Malaria Vaccine Initiative (MVI). (Photo: Swiss TPH)
Swiss TPH
Marcel Tanner, former director of the Swiss Tropical and Public Health Institute (Swiss TPH), journeys to Tanzania several times a year to meet with one of the Basel-based institution's partner organisations.
You can find an overview of ongoing debates with our journalists here . Please join us!
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.