COVID-19 during the third wave in Mexico: symptoms and vaccination as protective factor in Durango

Introduction. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was responsible for the pandemic declared in January 2020, impact of this virus is its high transmission rate where symptoms appear to 14 days after exposure Mexico vaccination against SARS-CoV-2 has been very important. Objective. To evaluate frequency SARS-CoV-2, symptoms, and north Durango State during third wave Mexico. Material methods. We recruited 917 subjects from Sanitary Jurisdiction #2 (dependent on Ministry Health state) October 2021 2022. diagnosed by RT-PCR nasopharyngeal swabs. Symptoms were evaluated. Results. The total incidence positive cases 41.66% (n=382). presence fever, cough, anosmia dysgeusia positively associated with infection (p<0.05). On other hand, previous application vaccine having contact prior diagnosis yielded a protective OR respect disease (OR = 0.60 0.50, respectively) Conclusions. observed relationship between disease. we factor due vaccination.