It’s not extinct and won’t go extinct. It doesn’t live in its natural range but there are wild stands outside which haven’t been exposed to chestnut blight, and there’s a genetically engineered variety which is resistant to the disease and which may be released into the wild soon.
Thank goodness for that. I heard there is a French variety that comes to crop within about twelve years, that also has resistance to chestnut blight. I was pleased, very pleased.
A vaccine is supposed an injection of an inert form of a disease. or a small amount of a live disease. Your immune system has a response to it and then you’re forever immune to the real thing.
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