Report on consumer acceptability tests of NARITA hybrids in Tanzania and Uganda

Consumer acceptability tests of NARITA hybrids were conducted with a total of 572 randomly selected men and women farmers from 5 sites in different agro-ecological zones in Tanzania and Uganda (Maruku, Mitalula and Moshi in Tanzania; Kawanda and Mbarara in Uganda). Evaluations were done between July and November 2018 under the project ‘Improvement of banana for smallholder farmers in the Great Lakes Region of Africa’. At each site, focus group discussions (FGDs) were first conducted with different age groups: young women, young men (35 years) to ascertain the main products households make using cooking banana cultivars and the preparation method. The most important product was then prepared in each site - steamed matooke in both Uganda sites and boiled fingers in all Tanzania sites. On a given day, about 100 farmers were each provided with coded samples of four NARITA hybrids plus one local check and asked to rate each sample on a 5-point hedonic scale for the following attributes: colour, aroma, texture in hand, taste, mouthfeel and overall acceptability. This report provides results that can help inform the selection of the best NARITAs to take on-farm and subsequent varietal release

Typhoid fever

Typhoid fever is an invasive bacterial disease associated with bloodstream infection that causes a high burden of disease in Africa and Asia. Typhoid primarily affects individuals ranging from infants through to young adults. The causative organism, Salmonella enterica subsp. enterica serovar Typhi is transmitted via the faecal–oral route, crossing the intestinal epithelium and disseminating to systemic and intracellular sites, causing an undifferentiated febrile illness. Blood culture remains the practical reference standard for diagnosis of typhoid fever, where culture testing is available, but novel diagnostic modalities are an important priority under investigation. Since 2017, remarkable progress has been made in defining the global burden of both typhoid fever and antimicrobial resistance; in understanding disease pathogenesis and immunological protection through the use of controlled human infection; and in advancing effective vaccination programmes through strategic multipartner collaboration and targeted clinical trials in multiple high-incidence priority settings. This Primer thus offers a timely update of progress and perspective on future priorities for the global scientific community

Tissue culture banana (Musa spp.) for smallholder farmers: lessons learnt from East Africa

The use of tissue culture (TC) banana (Musa spp.) planting material is an effective method of providing pest and disease-free plants. Although there are many added benefits to using TC plants, the adoption of TC technology remains relatively low in East Africa. Currently, adoption is increasing under impetus from the private sector. Adopting TC banana technology, however, is more expensive for the farmer than conventional suckers and may not be economically beneficial across all bananaproducing areas in East Africa. One of the greatest potential dangers for sustainable commercial TC plant production is the limited use of certification for plant quality and health, which is especially important in order to avoid the spread of viruses. Additionally, TC plant nurseries are important components, as they provide essential distribution hubs connecting TC producers with farmers. However, TC nurseries in East Africa face an array of challenges. Organizing banana farmers into groups has long been considered advantageous, as they foster increased buying and selling power, reduce economic and social risk, increase economies of scale, and facilitate access to credit and inputs in the case of formally certified groups. Distribution of superior planting material alone, however, does not ensure improved productivity. Smallholder farmers are constrained by factors such as a lack of: land, capital, access to technology and effective marketing infrastructure. As such, efficient distribution systems need to deliver TC plants as part of a package, including training and access to micro-credit. Despite a booming commercial sector, there is only anecdotal evidence that farmers who have adopted TC bananas have benefitted substantially in terms of higher yields and household incomes. Sound socio-economic analyses are crucial to guide policy strategies, to learn from successes already achieved and to identify important constraints for a wider dissemination of TC banana in the region