Bonos last day in Tanzania the least hectic yet on his six-nation African tour. We’re at a factory in Arusha, the only one in Africa manufacturing insecticide-treated bed nets using a new technology developed by Japans Sumitomo Chemical.

To Bono, the idea of ending Africas biggest killer malaria is like watching Armstrong walk on the moon. But there was something more about the factory that got Bono excited: The fact that an African-based company is making a product for Africa, is profitable and creates jobs. The factory employs 3,000 people with a start-up salary of around $45. The minimum wage in Tanzania is less than $40.

It is the most extraordinary story cutting edge 21st Century technology and Africa making its own solution to its own problems, he tells the factorys CEO Anuj Shah.

Seeing a photo opportunity, Bono jumped onto a bed covered by a bed net and joked: You heard of John and Yokos bed-in for peace? This is called ham for peace.

I feel very safe in here, he grinned at the cameras. The Global Fund to Fight AIDS, Tuberculosis and Malaria which benefits from all of Bonos Product Red profits is the biggest distributor of  free bed nets in Africa and a customer of the A to Z factory.

The use of bed nets alone without any other intervention can bring down malaria rates in children by 30 or 40 percent. The most successful malaria control program in Africa today is in South Africas KwaZulu-Natal region where effective diagnosis and treatment of malaria, use of bed nets, and indoor spraying has reduced malaria infections by 90 percent in just two or three years.

Later in the day, Bono drives outside town to the lush Samasha area where farmers are growing Artemisia Annua, a herb used in a new combination drug ACT (Artemisinin-based Combination Therapies). Supplies of Artemisia, mainly sourced from China and Vietnam, are limited. A U.S-based group, TechnoServe, is helping farmers in Tanzania cultivate Artemisia, which provides families with cash, while maize is grown on the side for food.