Stopped: Study was stopped because Principal Investigator did not obtain sponsorship to carry it out
Until the first half of April, Colombia has more than 2,800 infected cases and a hundred deaths as a result of COVID-19, with Antioquia being the third department with the highest number of cases. Official records indicate that, in Colombia, the first case was diagnosed on March 6, 2020, corresponding to a patient from Italy. However, in conversations with several infectologists and intensivists from MedellĂn, it was agreed that clinical cases similar to the clinical presentation that is now recognized as COVID-19 had arisen since the end of 2019 when it was still unknown to everyone. The previous suggests that the virus was already circulating in the country since before March 6, 2020. But at that moment, there were no tools to make a clinical identification, nor to diagnose it from the laboratory's point of view. Considering as real the hypothesis that the infection has been circulating in the country since before the first official diagnosis, the question arises: Why does not the country still has the same healthcare and humanitarian chaos that countries such as Italy and Spain are suffering at this time? To answer this question may be that there are differences in vaccination rates with BCG (Bacille Calmette-GuĂ©rin or tuberculosis vaccine), which is significantly higher in Latin America compared to those in Europe. This finding could explain to some extent the situation in the country, since previous studies have shown the influence that this vaccine can have on the immune response against various other pathogens, including viruses. Among the population at risk of infection, health-care workers due to their permanent contact with patients are the population group with the highest risk of contracting SARS-Cov-2 and developing COVID-19 in any of its clinical manifestations, and currently there are no vaccines or proven preventive interventions available to protect them. For this reason, this research study aims to demonstrate whether the centennial vaccine against tuberculosis (BCG), a bacterial disease, can activate the human immune system in a broad way, allowing it to better combat the coronavirus that causes COVID-19 and, perhaps, prevents the complications that lead the patient to the intensive care unit and death. In the future, and if these results are as expected, they may be the basis for undertaking a population vaccination campaign that improves clinical outcomes in the general population.
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Primary outcome
Timeframe: From date of randomization to 360 day of the study