Inmunidad canina ante SARS – COV-2 determinación de la duración de anticuerpos contra SARS-CoV-2 en perros entre los años 2020 y 2022

Abstract

The SARS-CoV-2 virus described at the end of 2019 was the cause of the COVID-19 pandemic that affected the entire world for 3 years, this agent corresponds to a beta coronavirus of the Coronaviridae family. During the pandemic, questions arose regarding the role of domestic species in the spread of the virus and how it affects them, one of the main questions being the seroprevalence of SARS-CoV-2 in canines, being a domestic species with close contact with humans. The objective of this thesis is to estimate the presence and persistence of IgG antibodies against SARS-CoV-2 in samples of domestic canines from the Metropolitan Region submitted to Enzyme-linked immunosorbent assay (ELISA) between 2020 and 2022, which shows an antibody persistence of 13 months that correlates positively with the age of the canines, 53% of which were females. Follow-up of 7 positive canines revealed that at no time during the entire follow-up period did the individuals cease to show positivity, but they did show a decreasing trend in relation to their enzyme-linked immunosorbent assay (ELISA) results. The canines sampled showed a seroprevalence of 6%, 10% and 3% between 2020 and 2023. For future research regarding the transmission of SARS-CoV-2 to domestic canines, factors such as physical contact with the owner, feeding, among others, should be considered