ABSTRACT
introduction. In the immune system there are two types of responses: rapid and unspecified innate immune response, and one adaptive response, slower but capable of creating memory. objective. To identify the prevalence of the igg in sars-cov-2 infected patients at issste Hospital in Durango. material and methods. Descriptive, observational, cross-sectional study;igg concentration was measured in 33 sars-cov-2 infected patients, the chemiluminescence method was used in the Architect i 2000 sr®;a concentration ≥1.4 was considered positive, it was expressed in conventional units. The spss v24, descriptive statistics, ji2 of Bartlett, t of student, “r” of Pearson with ic95% and p<0.05 were used as a reference point. The information obtained was kept anonymous. results. An media of 42.7 years was obtained, out of which the 60.6% were male, the media igg concentration was 3.8 conventional units, symptoms persisted 9.5 days, and between the beginning of the symptoms and sampling, 104.2 days elapsed;the 87.8% of the patients had symptoms and 86.2% of them igg was detected. There was a positive correlation between igg concentration and duration of symptoms, this being significant. conclusions. igg concentrations will depend on how many days the symptoms last, there were patients that despite presenting symptoms, igg was no longer detected for 104 days, this also happened with patients classified as asymptomatic.