The US is averaging nearly 120,000 new Covid-19 cases a day, which is a 40% increase from last month, and deaths have increased 12% over November.

Coronavirus cases that send vaccinated people to the hospital or cause death have been relatively rare, a New York Times analysis of state data shows.

One dose of vaccine is not enough to protect against the Delta and Beta variants, new research suggests, and even people who have had Covid-19 should be immunized.

With the adjustment for vaccination, the national death rate is roughly the same as it was two months ago, while the adjusted rates in several states show the pandemic is spreading as fast among the unvaccinated as it did during the winter surge.

A social media post claims that COVID-19 vaccination is unnecessary since unvaccinated people have "escaped every single/>

The Delta variant is more transmissible than previous strains, according to MCPH Executive Director Jeff Kuhr.

State public health officials expect that more than half of Colorado's COVID-19 cases are tied to the 'highly contagious' Delta variant.

Mesa County saw its first case of the Delta variant in may and is now ranked number one in highest confirmed cases across the state of Colorado.”We’ve had the delta variant in mesa coun…

It also has lots of false alarms.

This cohort study externally validates the Epic Sepsis Model in the prediction of sepsis and evaluates its potential clinical impact compared with usual care.

Five cases of the B1617.2 strain first identified in India have been discovered in Mesa County.

And what else you need to know today.

The B.1.1.7 variant, first identified in Britain, is now the source of most new coronavirus infections in the United States, the director of the Centers for Disease Control and Prevention said.

Experts say Covid-19 vaccinations in the United States are going extremely well -- but more people need to be protected and the country may be at the start of another surge.