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Volume 31, Number 9—September 2025
Research Letter
Monkeypox Virus Clade IIa Infections, Liberia, 2023–2024
Table
Patient and sample characteristics from suspected mpox cases in monkeypox virus clade IIa infections, Liberia, 2023–2024*
Sample ID | Age, y/sex | Location | Symptom onset date | Sample collection date | Liferiver MPXV result | Liferiver MPXV (FAM) Ct |
---|---|---|---|---|---|---|
LIB-MPV24-001 | 22/F | Nimba | 2023 Dec 28 | 2024 Jan 9 | + | 36.74 |
LIB-MPV24-007 | 5/M | Sinoe | 2024 Feb 8 | 2024 Feb 12 | + | 27.92 |
LIB-MPV24-014 | 30/M | Nimba | 2024 Mar 8 | 2024 Mar 12 | + | 37.06 |
LIB-MPV24-015 | 39/F | Nimba | 2024 Mar 10 | 2024 Mar 11 | + | 37.56 |
LIB-MPV24-027 | 24/F | Grand Kru | 2024 May 2 | 2024 May 6 | + | 37.63 |
LIB-MPV24-037 | 7/M | Nimba | 2024 Jun 26 | 2024 Jun 4 | + | 34.27 |
LIB-MPV24-054 | 7/F | Sinoe | 2024 Aug 20 | 2024 Aug 24 | + | 29.98 |
LIB-MPV24-069 | 2/M | Lofa | 2024 Aug 27 | 2024 Aug 29 | + | 30.33 |
LIB-MPV24-087 | 27/F | Sinoe | 2024 Sep 4 | 2024 Sep 5 | + | 26.44 |
LIB-MPV24-107 | 6/M | River Gee | 2024 Aug 17 | 2024 Sep 7 | + | 36.8 |
LIB-MPV24-114 | 20/M | Bong | 2024 Sep 3 | 2024 Sep 11 | − | 38.5 |
LIB-MPV24-116 | 16/M | Bong | 2024 Sep 4 | 2024 Sep 11 | − | Undetermined |
LIB-MPV24-117 | 12/M | Lofa | 2024 Sep 3 | 2024 Sep 9 | − | Undetermined |
LIB-MPV24-118 | 16/F | Grand Gedeh | 2024 Aug 25 | 2024 Sep 10 | − | Undetermined |
LIB-MPV24-119 | 56/M | Montserrado | 2024 Sep 10 | 2024 Sep 13 | − | Undetermined |
LIB-MPV24-123 | 29/M | Bong | 2024 Sep 3 | 2024 Sep 14 | − | Undetermined |
LIB-MPV24-136 | 28/M | Montserrado | 2024 Aug 31 | 2024 Sep 16 | − | Undetermined |
LIB-MPV24-141 | 23/M | Sinoe | 2024 Sep 10 | 2024 Sep 13 | − | Undetermined |
LIB-MPV24-142 | 17/F | Grand Gedeh | 2024 Aug 24 | 2024 Sep 14 | − | Undetermined |
LIB-MPV24-143 | 58/F | Grand Kru | 2024 Aug 30 | 2024 Sep 13 | − | Undetermined |
LIB-MPV24-144 | 1/M | Sinoe | 2024 Sep 10 | 2024 Sep 13 | − | Undetermined |
*Sample IDs in italics yielded near complete genomes (>98%), and sample IDs in bold met the threshold for detectable MPXV reads, defined as >1 read per kilobase of the MPXV reference genome per 1 million filtered reads. Of the 5 PCR-positive samples reported by the National Public Health Institute of Liberia that did not yield sequences, 3 had undetectable MPXV reads and insufficient DNA input (<10 ng), and 2 had detectable reads but lacked sufficient coverage for consensus genome generation. +, positive; −, negative; Ct, cycle threshold; FAM, fluorescein; MPXV, monkeypox virus.
1These first authors contributed equally to this article.