Discover and read the best of Twitter Threads about #bcgcorona
Most recents (2)
There is no evidence that the Bacille Calmette-Guérin (BCG) #vaccine protects people against #infection with #SARSCoV2 #coronavirus causing #COVID19. But, 2 #clinicaltrials addressing this question are underway. WHO does not recommend BCG vaccine for the prevention of COVID-19. 
There is EXPERIMENTAL evidence from animal & human studies that #BCG #vaccine has non-specific effects on the immune system. These effects have not been well characterized; clinical relevance is unknown. WHO updated its evidence review of major scientific databases on this topic
The review yielded 3 pre-prints (before peer-review), where authors compared incidence of #COVID19 cases in countries where the #BCGvaccine is used vs. countries where it is not used & observed countries that routinely used BCG in neonates had less #COVID19 cases to date.
#Thread on brief history of BCG vaccination in India and why researchers are touting it as an intervention that could possibly prevent a huge death toll in India and other countries with universal BCG vaccination program.
Mycobacterium tuberculosis which causes TB been with us for over 70,000 years and adds approx 10 million cases/yr. It finds its mention in biblical books and has bn verified in Egyptian mummies. 1st documents describing TB, date back to 3300 and 2300 yrs in India and in China.
The disease has been known by various names through history like "Pthisis","King's Evil","Robber of youth", "Consumption","White Plague" ,"Captain of all these men of Death" and has killed millions. Johann Lukas Schönlein coined the term "tuberculosis"
