In December 2019, a cluster of severe pneumonia cases was reported in Wuhan, Hubei Province, China. The goal of this review is to inform the researchers of diagnostic and surveillance platforms for SARS-CoV-2 and their performances. In addition, other platforms that use magnetic nanomaterials as auxiliary tools for enhanced pathogen and virus detection are also covered. Magnetic point-of-care diagnostic kits are also reviewed aiming at developing plug-and-play diagnostics to manage the SARS-CoV-2 outbreak as well as preventing future epidemics. ![]() We review popular magnetic nanosensing techniques including magnetoresistance, magnetic particle spectroscopy, and nuclear magnetic resonance. Herein, this review covers the literature of magnetic nanosensors for virus and pathogen detection before COVID-19. Recent advances in magnetic nanomaterials and nanotechnologies have transformed current diagnostic methods to nanoscale and pushed the detection limit to early-stage disease diagnosis. The past decade has seen rapid growth in applying magnetic tools for biological and biomedical applications. Magnetic nanosensing is an emerging topic representing the frontiers of current biosensing and magnetic areas. ![]() As of July 2020, no specific drugs or vaccines are yet available for COVID-19 a fast and accurate diagnosis for SARS-CoV-2 is essential in slowing the spread of COVID-19 and for efficient implementation of control and containment strategies. The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19), is a threat to the global healthcare system and economic security.
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