Inverted CD4⁺/CD8⁺ T cell ratio in Boran (Bos indicus) cattle.

"Declaration of Competing Interest The authors report no declarations of interest."

"Funding This research was conducted as part of the CGIAR Research Program on Livestock and is supported by contributors to the CGIAR Trust Fund. CGIAR is a global research partnership for a food-secure future. Its science is carried out by 15 Research Centers in close collaboration with hundreds of partners across the globe (www.cgiar.org). The research was also funded in part by the 10.13039/100000865Bill and Melinda Gates Foundation and with UK aid from the UK Government’s Department for International Development (Grant Agreement OPP1127286) under the auspices of the Centre for Tropical Livestock Genetics and Health (CTLGH), established jointly by the University of Edinburgh, Scotland’s Rural University College, and ILRI. The findings and conclusions contained within are those of the authors and do not necessarily reflect positions or policies of the Bill and Melinda Gates Foundation nor the UK Government. The Roslin Institute is supported by core funding from the UK Biotechnology and Biological Sciences Research Council (grant numbers BBS/E/D/10002071 and BBS/E/D/20002174). Maurine Makau was supported by a fellowship No 91672938 from the German Academic exchange Service (DAAD). Jessica Powell was supported by an EASTBIO doctoral training studentship, funded by the UK Biotechnology and Biological Sciences Research Council (BBSRC) grant no. BB/P024025/1."