Omicron has been particularly lethal to people over 75, the unvaccinated and the medically vulnerable, according to doctors and public health officials. The soaring death toll also illustrates why experts pleaded with the public to beware of the highly contagious variant even though it is less virulent than others.

“That feels quite jarring to people who may have assumed omicron is generally on a per-case level less severe and given the fact we have vaccinated at least some portion of the country,” said Jennifer Nuzzo, an epidemiologist at the Johns Hopkins Bloomberg School of Public Health. “Even if on a per-case basis fewer people develop severe illness and die, when you apply a small percentage to a very large number, you get a substantial number.”

Yet the seven-day average of deaths during the omicron surge has reached 2,600 in recent days, climbing past the late September peak of about 2,000 average daily fatalities during the surge of the more dangerous delta variant, according to Post tracking. The ranks of hospitalized patients with covid-19 reached record highs in January. Coronavirus deaths lag hospitalizations.