"Covid-19 vaccines are available for everyone ages 12 and up," CDC Director Dr. Rochelle Walensky said Tuesday at a White House briefing. "They are nearly 100% effective against severe disease and death -- meaning nearly every death due to Covid-19 is particularly tragic, because nearly every death, especially among adults, due to Covid-19 is at this point entirely preventable." Those still dying from Covid-19 in the US are "overwhelmingly" unvaccinated … Dr. Anthony Fauci told CNN.