This study analyzes the marriage patterns in accounts of ‘founder strangers’ and ‘first-comers’. By telling whether and when a child from a marriage between a Muslim and a warrior was successful or not, the accounts reveal the social code of the political elites in the Western Sudan in the period c. 1600–c. 1850. This social code expressed the elites’ concern with legitimizing their political autonomy as well as with reproducing their ruling position in a context of increasing warfare and growing reformist Islam. This social code structured accounts of both matrilineal warrior rulers and patrilineal Muslim rulers. Though methodologically rooted in classical approaches, historiographically this study contributes not only to recent research on state formation in Kaabu (present-day Guinea-Bissau) and Kankan (present-day Guinea), but also offers an approach to the Sunjata epic that hints at a seventeenth- and eighteenth-century origin of most of the epic as we know it. These fresh insights may shed new light on the history of the Mali Empire and its aftermath, and on processes of state formation in the Western Sudan in general.

Our understanding of the distribution of integrons associated with multidrug resistance in Acinetobacter baumannii isolates around the world remains incomplete. The association between the class 1 and 2 integron A. baumannii-positive isolates (n = 60), recovered since 1982 from 11 Argentinean hospitals, and the circulating lineages, was investigated. While class 2 integrons were highly significantly associated with clonal lineage CC113B/CC79P (P = 0·009) and novel singletons (P = 0·001), class 1 integrons were found not to be associated with CC109B/CC1P or other lineages. The study reveals a differential distribution of class 2 integrons in lineages, and suggests that the prevalence of intI2 in Argentina is related to the emergence of novel singletons in recent years and to the abundance of CC113B/CC79P, which has been the local dominant lineage for several decades.

Analysis of mitochondrial DNA (mtDNA) was carried out using 38 Kalahari Red (KR) goats randomly sampled from a flock imported into Nigeria in 2011 by the Federal University of Agriculture, Abeokuta, as an initial step to investigate the genetic structure of the breed, due to limited information on the breed. Apart from estimating genetic diversities, phylogenetic analysis to elucidate maternal lineages, relationship with wild goats as well as Tajima's D and Fu's Fs statistics were computed to test the departure from constant population size under the neutral model. The first hypervariable (HV1) region of mtDNA (481 bp) sequenced from 38 goats represented 11 haplotypes. Polymorphism of HV1 fragment was high, haplotype and nucleotide diversities were 0.869 ± 0.030 and 0.0299 ± 0.0067, respectively. Maximum-likelihood tree constructed with 11 haplotypes and 22 reference haplotypes representing six haplogroups worldwide revealed that five out of 11 haplotypes belong to haplogroup A, whereas six haplotypes belong to B. KR population clustered with Capra aegagrus as its wild ancestor. There was evidence of mitochondrial footprint that reflected past population decline based on positive and significant Fu's Fs estimate (6.283; P < 0.01). The mtDNA data did not however show that genetic variability of the breed has drastically reduced on account of population reduction. The information obtained is strategic to utilization and conservation of the population.

Community and hospital-acquired cases of human rotavirus are responsible for millions of gastroenteritis cases in children worldwide, chiefly in developing countries, and vaccines are now available. During surveillance activity for human rotavirus infections in Ireland, between 2006 and 2009, a total of 420 rotavirus strains were collected and analysed. Upon either PCR genotyping and sequence analysis, a variety of VP7 (G1–G4 and G9) and VP4 (P[4], P[6], P[8] and P[9]) genotypes were detected. Strains G1P[8] were found to be predominant throughout the period 2006–2008, with slight fluctuations seen in the very limited samples available in 2008–2009. Upon either PCR genotyping and sequence analysis of selected strains, the G1, G3 and G9 viruses were found to contain E1 (Wa-like) NSP4 and I1 VP6 genotypes, while the analysed G2 strains possessed E2 NSP4 and I2 VP6 genotypes, a genetic make-up which is highly conserved in the major human rotavirus genogroups Wa- and Kun-like, respectively. Upon sequence analysis of the most common VP4 genotype, P[8], at least two distinct lineages were identified, both unrelated to P[8] Irish rotaviruses circulating in previous years, and more closely related to recent European humans rotaviruses. Moreover, sequence analysis of the VP7 of G1 rotaviruses revealed the onset of a G1 variant, previously unseen in the Irish population.

This article examines the changing nature of patrilineality in east-central Uganda from the sixth century. While traditional anthropological models of lineality have been largely dismissed in recent scholarship, the problem remains that patrilineages and patriclans have played important roles in the lives of the Ganda, Gwere, Soga and their North Nyanza ancestors. By carefully examining changes and continuities in the form and content of patrilineality it becomes possible to understand it as historically contingent. In North Nyanza, patrilineal descent was the norm for inheritance and for household formation, but relationships formed through mothers were also crucial in the creation of new communities and in the legitimation of political power. This was not static: as communities negotiated their changing circumstances, so they adapted the form of their particular patrilineality to serve their needs.

This article raises the question of how scholars might make sense of well-known components of social organization in Africa in the absence of the increasingly criticized evolutionary and lineage models that once gave them meaning. In an effort to understand why our earliest glimpses into the distant Ganda past appear in the form of clan histories, the article examines the relationship between clanship, public healing and transformations in agricultural practices. Beginning around the fifteenth and sixteenth centuries, Ganda expanded upon earlier knowledge of banana cultivation to develop a land-intensive banana farming system. This process coincided with the transformation of previously territorial spirits into portable spirits capable of ensuring the health of disconnected groups of people. At the heart of these undertakings stood the ideology and practices of clanship, which furnished the conceptual bridge connecting transformations in agriculture and public healing. The webs of shrines situated on discontiguous clan lands created therapeutic networks that drew together communities whose leaders possessed a variety of skills, thus forging a powerful connection between clanship, collective health and the composition of knowledge.