SARS-CoV-2 and approaches for a testing and diagnostic strategy.

Area of Science:

• Biomedical diagnostics
• Infectious disease research
• Point-of-care testing

Background:

• The COVID-19 pandemic underscored the critical need for rapid, scalable, and reliable diagnostic methods.
• Existing diagnostic strategies faced supply chain disruptions and limitations in accessibility.
• Paper-based assays emerged as a promising alternative due to their potential for low cost and ease of use.

Purpose of the Study:

• To explore the role of paper-based diagnostic assays in a comprehensive COVID-19 testing strategy.
• To investigate methods for overcoming technical challenges, such as improving the sensitivity of paper-based tests.
• To discuss the integration of these assays into pandemic preparedness and response.

Main Methods:

• Review of SARS-CoV-2 virus properties, COVID-19 disease progression, and immune responses.
• Analysis of various diagnostic strategies: molecular, antigen, and serological assays.
• Examination of innovations aimed at enhancing diagnostic sensitivity and capabilities.

Main Results:

• Paper-based assays present a viable option for rapid, accessible diagnostics, particularly in resource-limited environments.
• Technological advancements are being made to improve the sensitivity and reliability of these assays.
• Addressing limitations is crucial for their effective deployment in public health.

Conclusions:

• Paper-based diagnostic assays can significantly contribute to managing infectious disease outbreaks like COVID-19.
• Further development is needed to optimize sensitivity and scalability for widespread adoption.
• These assays are essential for future pandemic preparedness and global health security.