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. 2022 Sep 12;21(2):87–96. doi: 10.1038/s41579-022-00789-8

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Fig. 1 — The first described cases (squares) of Lassa fever were in the town of Lassa, Nigeria. The infected persons were transported to Jos. Seven lineages (I–VII) of Lassa virus (LASV) are present across West Africa. Important centres for Lassa fever research (circles) are located at the Kenema Government Hospital (KGH), the National Public Health Institute of Liberia (NPHIL), the Irrua Specialist Teaching Hospital (ISTH), Owo and Abakaliki. The African Center of Excellence for the Genetics of Infectious Diseases (ACEGID) is located at Redeemers University. The circles with Roman numerals I–VII represent the approximate ranges of the seven different LASV lineages.