Colombian Departmental COVID-19 PCR Test Results

SisMuestras system data provides processed PCR test results for COVID-19 across Colombian departments. The dataset includes cumulative positive and negative test counts, positivity rates, and weekly updates starting from April 15, 2020. It is published by the Instituto Nacional de Salud (INS) via the datos.gov.co platform.

Use Cases

• Analyze Positividad acumulada trends by department like Antioquia or Valle del Cauca over time.
• Compare cumulative case counts (Positivas acumuladas) between departments such as Cundinamarca and Santander.
• Monitor weekly changes in Negativas acumuladas and Positivas acumuladas using the Fecha column.
• Identify departments with high proportions of Indeterminadas or unknown origin samples for data quality assessment.

Strengths

• Covers all 32 Colombian departments and the capital district, as indicated by column names.
• Provides weekly updates, with data current as of December 2025.
• Includes key metrics per department: cumulative positives, negatives, and positivity rate.

Limitations

• Contains an Indeterminadas column for samples with unverified geographic origin, affecting spatial accuracy.
• Row count and total sample size are unknown, limiting assessment of statistical power.
• Cumulative values are subject to historical adjustments, as noted in the description.

Provenance

Source

Instituto Nacional de Salud (INS) Colombia via datos.gov.co.

Collection Method

Collected via the SisMuestras system from laboratories within the national network.

Time Range

From April 15, 2020 onward.

Freshness

Weekly updates.

Geography

Colombia, departmental level.