학술논문

Rapid Adaptation of Established High-Throughput Molecular Testing Infrastructure for Monkeypox Virus Detection
Document Type
article
Source
Emerging Infectious Diseases, Vol 28, Iss 9, Pp 1765-1769 (2022)
Subject
monkeypox virus
viruses
zoonoses
SARS-CoV-2
molecular diagnostics
high-throughput PCR testing
Medicine
Infectious and parasitic diseases
RC109-216
Language
English
ISSN
1080-6040
1080-6059
Abstract
Beginning in May 2022, a rising number of monkeypox cases were reported in non–monkeypox-endemic countries in the Northern Hemisphere. We adapted 2 published quantitative PCRs for use as a dual-target monkeypox virus test on widely used automated high-throughput PCR systems. We determined analytic performance by serial dilutions of monkeypox virus reference material, which we quantified by digital PCR. We found the lower limit of detection for the combined assays was 4.795 (95% CI 3.6–8.6) copies/mL. We compared clinical performance against a commercial manual orthopoxvirus research use only PCR kit by using clinical remnant swab samples. Our assay showed 100% positive (n = 11) and 100% negative (n = 56) agreement. Timely and scalable PCR tests are crucial for limiting further spread of monkeypox. The assay we provide streamlines high-throughput molecular testing for monkeypox virus on existing broadly established platforms used for SARS-CoV-2 diagnostic testing.