CRISPR /Cas system and its application in the diagnosis of animal infectious diseases

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Abstract
Infectious diseases are a serious threat to the existence of animals and humans' life. In the 21st century, the emergence and re‐emergence of several zoonotic and non‐zoonotic global pandemic diseases of socio‐economic importance has affected billions of humans and animals. The need for expensive equipment and laboratories, non‐availability of on‐site testing abilities, with time‐consuming and low sensitivity and specificity issues of currently available diagnostic techniques to identify these pathogenic micro‐organisms on a large scale highlighted the need for developing cheap, portable environment friendly diagnostic methods. In recent years, these issues have been addressed by clustered regularly interspaced palindromic repeats (CRISPR)‐based diagnostic platforms that have transformed the molecular diagnostic field due to their outstanding ultra‐sensitive nucleic acid detecting capabilities. In this study, we highlight the types, potential of different Cas proteins, and amplification systems. We also illuminate the application of currently available CRISPR integrated setups on the diagnosis of infectious diseases, majorly in food‐producing animals (pigs, ruminants, poultry, and aquaculture), domestic pets (dogs and cats), and diseases of zoonotic importance. We conclude the challenges and future perspectives of using these systems to rapidly diagnose and treat other infectious diseases and also develop control strategies to prevent the spread of pathogenic organisms.
Funding Information
  • National Key Research and Development Program of China (2022YFC2304001)

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