ABSTRACT In livestock environments, the proliferation of microorganisms and the viruses they harbor threatens both the economic development of the livestock industry and public health. Common airborne viruses found in livestock and poultry farms include avian H1N1 influenza virus (AIV H1N1), classical swine fever virus (CSFV), and foot‐and‐mouth disease virus (FMDV). This paper simulates a viral sampling system for bioaerosols in livestock environments and proposes a multi‐channel magnetoelastic (ME) device based on immune responses. This device integrates with Android smartphones and enables simultaneous detection of multiple livestock viruses. Experimental results indicate that the resonance frequency shift (RFS) of the magnetoelastic (ME) sensor is linearly proportional to analyte concentration. Specifically, a linear trend is observed for AIV H1N1 within 5–20 ng·mL −1 , CSFV within 0.5–2.5 µg·mL −1 and FMDV within 0.25–1 µg·mL −1 . With goodness‐of‐fit metrics of 0.973, 0.994, and 0.982, the ME device achieves accuracy and operational stability comparable to a vector network analyzer (VNA). The results indicate that the proposed ME sensing device offers advantages such as rapid response, high specificity, and simple, portable operation, making it feasible and promising for practical applications.
Zhang et al. (Wed,) studied this question.