Viral Diagnosis in Psittacine Birds: A Scientometric and Systematic Review of 47 Years

Simple Summary In this review, we present the differences between viral diagnostic studies in psittacines and their progress. The aim of this study was to analyze the evolution of published studies on viruses in psittacines up to 2022. We found that: (i) on average, 2.5 articles per year on viral diagnosis in psittacines have been published since 1975; (ii) the most productive research groups are concentrated in Australia, the United States, and Germany; (iii) the most important virus for psittacines is Circovirus; (iv) the diagnostic method of choice is polymerase chain reaction (PCR); and (v) the most studied psittacines belong to the Psittacidae family kept in captivity. This study provides information to guide future work on viruses in psittacines and encourages broad viral research in wild and domestic animals to prevent future outbreaks and the emergence of new viral diseases.Abstract The first reports of viruses in psittacine birds date back to the early 1970s. Here, we elucidate the differences among these previous studies and the advances achieved. The objective of this study was to carry out a comprehensive review using both scientometric and systematic methods to analyze the evolution of published studies on viruses in psittacine birds up to 2022. The search descriptors "virus", "diagnosis", and "Psittaciformes" were used to find the articles of interest for this study. A total of 118 articles were manually selected, and the scientometric data were organized using the software VOSviewer (R) version 1.6.18. The present review revealed that: (i) on average, 2.5 articles/year on the diagnosis of viral infection in psittacine birds were published since 1975; (ii) the most productive research groups are concentrated in three countries: Australia, the United States, and Germany; (iii) the most important virus in psittacine birds is the Circovirus, which causes psittacine beak and feather disease; (iv) the diagnostic method of choice is polymerase chain reaction (PCR); and (v) the most studied psittacine birds were those in the Psittacidae family that were kept in captivity.