Many existing drugs are being evaluated to reduce the risk of infection from coronavirus. Each works differently. Initially, computer research of various parameters of existing COVID-19 tests is done.
Currently approved drugs are then compared with elements of blood and other samples to establish a potential fit for COVID-19 trials.
https://www.newsmax.com/health/headline/tuberculosis-vaccine-coronavirus-cedars-sinai/2020/11/24/id/998530/ This week, evidence of another vaccine surfaced that may help reduce the risk of infection. The Bacillus Calmette-Guérin (BCG) vaccine is showing the potential of reducing the risk of infection.
BDG vaccine has been used for over 100 years. It is approved by the FDA and administered to over 100,000,000 children annually. It is used to treat tuberculosis and lately as a bladder cancer drug.
https://www.jci.org/articles/view/145157 The study was published one week ago. Blood samples from over 6,201 healthcare workers in the Cedars-Sinai Health System were analyzed for coronavirus antibodies.
1,836 healthcare workers (almost 30%) were found to be vaccinated with BCG. This group was unique in that they were less likely to have coronavirus antibodies or having contracted COVID-19.
https://www.dailynews.com/2020/11/20/cedars-sinai-studies-century-old-vaccine-that-may-prevent-coronavirus/ There are no definitive results indicating that the BCG vaccine can reduce or prevent coronavirus. However, people who have had the BCG vaccine appear to be less susceptible to coronavirus warrants further investigation.
Were those BCG-vaccinated people healthier? Maybe. BCG vaccine has a history of offering general protection to both bacterial and viral infections. Did the non-BCG-vaccinated healthcare workers have higher precedence of pre-existing conditions? No analysis of that was reported.
There appears to be a link between those having been vaccinated with the BCG vaccine and the lower risk of coronavirus infection. Studies are probably merited to determine the true ability of the BCG vaccine to offer protection from COVID-19.
This vaccine has been around for a long time. It is FDA approved. The Texas A&M University, Baylor College of Medicine, and the University of Texas MD Anderson Cancer Center are recruiting healthcare workers to begin clinical studies on the BCG vaccine.
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