A
Abraham Aseffa
Researcher at Addis Ababa University
Publications - 448
Citations - 14316
Abraham Aseffa is an academic researcher from Addis Ababa University. The author has contributed to research in topics: Tuberculosis & Population. The author has an hindex of 56, co-authored 414 publications receiving 12243 citations. Previous affiliations of Abraham Aseffa include Abu Dhabi Indian School & Memorial Medical Center.
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Journal ArticleDOI
Out-of-Africa migration and Neolithic coexpansion of Mycobacterium tuberculosis with modern humans
Iñaki Comas,Mireia Coscolla,Mireia Coscolla,Tao Luo,Sonia Borrell,Sonia Borrell,Kathryn E. Holt,Midori Kato-Maeda,Julian Parkhill,Bijaya Malla,Bijaya Malla,Stefan Berg,Guy E. Thwaites,Dorothy Yeboah-Manu,Graham H. Bothamley,Jian Mei,Lan-Hai Wei,Stephen D. Bentley,Simon R. Harris,Stefan Niemann,Roland Diel,Abraham Aseffa,Qian Gao,Douglas B. Young,Douglas B. Young,Sebastien Gagneux,Sebastien Gagneux +26 more
TL;DR: Coalescent analyses indicate that MTBC emerged about 70,000 years ago, accompanied migrations of anatomically modern humans out of Africa and expanded as a consequence of increases in human population density during the Neolithic period, consistent with MTBC displaying characteristics indicative of adaptation to both low and high host densities.
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The Relationship between Leishmaniasis and AIDS: the Second 10 Years
Jorge Alvar,Pilar Aparicio,Abraham Aseffa,Margriet den Boer,Carmen Cañavate,Jean-Pierre Dedet,Luigi Gradoni,Rachel ter Horst,Rogelio López-Vélez,Javier Moreno +9 more
TL;DR: Based on the previous experience of 20 years of coinfection in Europe, this review focuses on the management of Leishmania-HIV-coinfected patients in low-income countries where leishmaniasis is endemic.
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High Prevalence and Increased Severity of Pathology of Bovine Tuberculosis in Holsteins Compared to Zebu Breeds under Field Cattle Husbandry in Central Ethiopia
Gobena Ameni,Abraham Aseffa,Howard Engers,Douglas B. Young,Stephen V. Gordon,Glyn Hewinson,Martin Vordermeier +6 more
TL;DR: Both the skin test response and the postmortem findings suggested a higher susceptibility to bovine TB in Holsteins than zebus under identical field husbandry conditions (on pasture), highlighting the need for a control program in these herds.
Journal ArticleDOI
Incidence of invasive salmonella disease in sub-Saharan Africa: a multicentre population-based surveillance study
Florian Marks,Vera von Kalckreuth,Peter Aaby,Yaw Adu-Sarkodie,Muna Ahmed El Tayeb,Mohammad Ali,Abraham Aseffa,Stephen Baker,Holly M. Biggs,Morten Bjerregaard-Andersen,Robert F. Breiman,Robert F. Breiman,James Campbell,Leonard Cosmas,John A. Crump,Ligia Maria Cruz Espinoza,Jessica Fung Deerin,Denise Dekker,Barry S. Fields,Nagla Gasmelseed,Julian T. Hertz,Nguyen Van Minh Hoang,Justin Im,Anna Jaeger,Hyon Jin Jeon,Leon Parfait Kabore,Karen H. Keddy,Frank Konings,Ralf Krumkamp,Benedikt Ley,Benedikt Ley,Sandra Valborg Løfberg,Jürgen May,Christian Meyer,Christian Meyer,Eric D. Mintz,Joel M. Montgomery,Aissatou Ahmet Niang,Chelsea Nichols,Beatrice Olack,Gi Deok Pak,Ursula Panzner,Jin Kyung Park,Se Eun Park,Henintsoa Rabezanahary,Raphaël Rakotozandrindrainy,Tiana Mirana Raminosoa,Tsiriniaina Jean Luco Razafindrabe,Emmanuel Sampo,Heidi Schütt-Gerowitt,Heidi Schütt-Gerowitt,Amy Gassama Sow,Nimako Sarpong,Hye Jin Seo,Arvinda Sooka,Abdramane Bassiahi Soura,Adama Tall,Mekonnen Teferi,Kamala Thriemer,Kamala Thriemer,Michelle R. Warren,Biruk Yeshitela,John D. Clemens,John D. Clemens,Thomas F. Wierzba +64 more
TL;DR: The development of iNTS vaccines and the introduction of S Typhi conjugate vaccines should be considered for high-incidence settings, such as those identified in this study.
Journal ArticleDOI
Mycobacterial Lineages Causing Pulmonary and Extrapulmonary Tuberculosis, Ethiopia
Rebuma Firdessa,Stefan Berg,Elena Hailu,Esther Schelling,Balako Gumi,Girume Erenso,Endalamaw Gadisa,Teklu Kiros,Meseret Habtamu,Jemal Hussein,Jakob Zinsstag,Brian D. Robertson,Gobena Ameni,Amanda J. Lohan,Brendan J. Loftus,Iñaki Comas,Sebastien Gagneux,Rea Tschopp,Lawrence Yamuah,Glyn Hewinson,Stephen V. Gordon,Douglas B. Young,Abraham Aseffa +22 more
TL;DR: A novel phylogenetic lineage of M. tuberculosis strongly associated with the Horn of Africa is reported, with a minimal role for M. bovis in patients with lymph node or pulmonary tuberculosis in Ethiopia.