A new study found global efforts to track variants grossly underreported a probable variant of concern, eta, circulating in Nigeria in early 2021. This was followed by the circulation of a rare delta sublineage in the region that was different from the delta variant that circulated in most other parts of the globe.
If the United States ignores COVID-19 in Nigeria, we forgo global genomic surveillance at our own peril, reports a new Northwestern Medicine study published in Nature Communications.