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We estimated the incubation period for mpox during an outbreak in Pereira, Colombia, using data from 11 confirmed cases. Mean incubation period was 7.1 (95% CI 4.9-9.9) days, consistent with previous outbreaks. Accurately estimating the incubation period provides insights into transmission dynamics, informing public health interventions and surveillance strategies.

Introduction: Chronic obstructive pulmonary disease (COPD) is a major global health problem causing high morbidity and mortality. Easy to apply, cost-effective, and available COPD severity measures are required in rural areas. Objective: To assess the validity and reliability of the COPD Severity Score (COPDSS) in Colombian patients attended in primary care. Materials and methods: A cross-sectional study was conducted in a sample of 100 patients diagnosed with COPD according to GOLD guidelines. Convergent validity was assessed by correlating the COPDSS results with other important variables such as those assessed through the Chronic Respiratory Disease Questionnaire (CRQ) and the forced expiratory volume in one second (FEV1). Results: The COPDSS showed a significant correlation with the FEV1 (r=-0.33), with the CRQ (r=-0.57) and its dimensions: Dyspnea (r=0.51), fatigue (r=0.53), emotional function (r=0.43), and disease control (r=0.50). The factor analysis identified a single factor with a cumulative variance of 59.1%. The internal consistency analysis showed an adequate Cronbach’s alpha of 0.76. Conclusions: The use of the COPDSS as an assessment test for COPD patients in Colombia showed adequate validity, reliability, and easy application in primary care.

Objective: To estimate the serial interval and the basic reproduction number of COVID-19 between imported cases during the containment phase in Pereira-Colombia, 2020., Method: A quantitative study was carried out to determine the transmission dynamics for COVID-19. Field epidemiological data were used, which included 12 laboratory-confirmed cases with RT-PCR for imported SARS-CoV-2 and their corresponding confirmed secondary cases, including family and social contacts., Results: The serial intervals in COVID-19 fit a Gamma distribution, with a mean of the serial interval of 3.8 days (2.7) and an R0 of 1.7 (95% CI 1.06-2.7) lower than that found in other populations with onset of the outbreak., Conclusions: A serial interval lower than the incubation period such as that estimated in this study, suggests a presymptomatic transmission period that according to other investigations reaches an average peak at 3.8 days, suggesting that during the field epidemiological investigation the search for contacts Narrowing is performed from at least 2 days before the onset of symptoms of the initial case.