NETEC Resource Library

Genomic Analysis of Lassa Virus during an Increase in Cases in Nigeria in 2018


Click for External Resource*

Click to read full article*

*The link above may share a zip file (.zip) hosted on Zip files will download automatically.
*All other links are external and will open in a new window. If you click an external link, you are leaving the NETEC site, and we do not maintain, review, or endorse these materials. See our terms of use.

Files for Download


Item Type


Terms of Use

By accessing these materials you are agreeing to our terms of use, which may be found here: Terms of Use.

Was this resource helpful?


Siddle, Katherine J., Philomena Eromon, Kayla G. Barnes, Samar Mehta, Judith U. Oguzie, Ikponmwosa Odia, Stephen F. Schaffner, Sarah M. Winnicki, Rickey R. Shah, James Qu, Shirlee Wohl, Patrick Brehio, Christopher Iruolagbe, John Aiyepada, Eghosa Uyigue, Patience Akhilomen, Grace Okonofua, Simon Ye, Tolulope Kayode, Fehintola Ajogbasile, Jessica Uwanibe, Amy Gaye, Mambu Momoh, Bridget Chak, Dylan Kotliar, Amber Carter, Adrianne Gladden-Young, Catherine A. Freije, Omigie Omoregie, Blessing Osiemi, Ekene B. Muoebonam, Michael Airende, Rachael Enigbe, Benevolence Ebo, Iguosadolo Nosamiefan, Paul Oluniyi, Mahan Nekoui, Ephraim Ogbaini-Emovon, Robert F. Garry, Kristian G. Andersen, Daniel J. Park, Nathan L. Yozwiak, George Akpede, Chikwe Ihekweazu, Oyewale Tomori, Sylvanus Okogbenin, Onikepe A. Folarin, Peter O. Okokhere, Bronwyn L. MacInnis, Pardis C. Sabeti, and Christian T. Happi. 2018. "Genomic Analysis of Lassa Virus during an Increase in Cases in Nigeria in 2018." The New England journal of medicine 379 (18):1745-53.



In early 2018 Nigeria experienced an unprecedented increase in Lassa fever cases with widespread geographic distribution. We report 77 Lassa virus genomes generated from patient samples, 14 from 2018, to investigate whether recent changes in the virus genome contributed to this surge. Our data argue that the surge is not attributable to a single Lassa virus variant, nor has it been sustained by human-to-human transmission. We observe extensive viral diversity structured by geography, with major rivers appearing to act as barriers to migration of the rodent reservoir. Together our results support that the 2018 Lassa fever surge was driven by crossspecies transmission from local rodent populations of multiple viral variants from different lineages.


Free online


Related Resource Topic Exhibits