Some news emerging in the last couple of days suggesting the BCG vaccine offers some level of protection. Might go some way to explain worse outcomes in countries Italy and the Netherlands who do not vaccinate for TB unlike here.
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Does the BCG cause a partial herd immunity?
Some news emerging in the last couple of days suggesting the BCG vaccine offers some level of protection. Might go some way to explain worse outcomes in countries Italy and the Netherlands who do not vaccinate for TB unlike here.
Strange though, since TB is a bacterial infection.From what I've read, it trains the immune response to better deal with such infections so while it doesn't offer immunity, it lessens the severity of the symptoms.
See the map linked in my previous post. Spain, Italy , the USA and Canada don't.what countries are giving BCG to their population
is the map listed accurate
This is where it gets complex.Strange though, since TB is a bacterial infection.
Sure, I understood that. I was just surprised that a bacterial infection could create such an immune system response to a virus but as you say both attack the lungs.This is where it gets complex.
The theory isn't that BCG vaccination provides protection from the SARS-COV-2 virus, but that it may have somehow educated the immune system to respond to COVID-19, the disease brought on by the virus. It seems that, perhaps due to the primary locus of infection being the lungs, the body's response system is better prepared to fight the onset of the disease, reducing the severity of the symptoms. So the vaccination doesn't act in an anti-viral manner but at a symptomatic level. Does that make sense?