Omicron is kicking delta's behind: It now accounts for 73% of new infections in the U.S. in the last week, a six-fold increase from the week previous, reports AP News. That number is even higher in the New York area, the Southeast, the Midwest, and our own Pacific Northwest, making up around 90% of new infections. This explosion in omicron cases inspired Dr. Amesh Adalja, senior scholar at the Johns Hopkins Center for Health Security,...