According to this podcast featuring a Harvard epidemiologist, someone can get it twice: https://pca.st//episode/ca05539a-1c01-4862-9e86-8882e5e42178 https://pca

According to this podcast featuring a Harvard epidemiologist, someone can get it twice: https://pca.st//episode/ca05539a-1c01-4862-9e86-8882e5e42178 https://pca.st//episode/ca05539a-1c01-4862-9e86-8882e5e42178