Very interesting stuff. I always wondered why the second time a person got dengue it's usually more dangerous. My wife got dengue fever about 8 years ago. Two

Very interesting stuff. I always wondered why the second time a person got dengue it's usually more dangerous. My wife got dengue fever about 8 years ago. Two months ago, she caught it again, this time it was the much more dangerous dengue hemorrhagic fever variant. Not fun. Before ,I always thought that it was just a myth that the second time around it's usually hemorrhagic.