A second storm bringing heavy snow to the Northeast has shut down vaccination sites in at least two states.

New York Gov. Andrew Cuomo and New Jersey Gov. Phil Murphy both announced that appointments for Sunday would be rescheduled due to the inclement weather.

Mass vaccination sites located indoors, such as the newly opened Yankee Stadium, will continue as scheduled as they have the infrastructure and equipment in place to ensure people can safely enter and exit the location, according to ABC New York station WABC.

Nine percent of Americans -- 28.9 million people – have received one or more vaccine doses, according to a report from the Department of Health and Human Services.

Two percent of Americans -- 7.5 million people -- have received two doses, the report said.

Deaths are down 4% since the peak on Jan. 13, while hospital admissions have decreased 37% since the Jan. 9 peak, the report said.

ABC News’ Josh Margolin and Brian Hartman contributed to this report.

New York state’s seven-day average positivity rate has fallen to 4.58% -- the lowest since Dec. 2, Gov. Andrew Cuomo announced Saturday.

New York has 7,804 COVID-19 patients in hospitals -- the lowest since Dec. 27, he added.

Cuomo called these numbers "a reflection of the discipline New Yorkers have shown to defeat the virus."

"Super Bowl weekend is here and while the instinct may be to celebrate together, we cannot get cocky -- we must continue doing the things we know are effective at taming the virus: wear a mask, adhere to social distancing, and avoid gatherings," he said.

ABC News’ Josh Hoyos contributed to this report.

China has given approval for the domestic-made Sinovac Biotech COVID-19 vaccine to be administered to the general public -- not just high-risk individuals and front-line workers.

The National Medical Products Administration shared the news in a statement Saturday.

The vaccine -- which was given emergency approval in China last July -- has already been sold to at least 10 other countries and is being given to people in at least five other countries.

China previously said shots will be given without cost to citizens.

January marked the nation's deadliest month of the coronavirus pandemic, with a death total approximately four times the reported number of COVID-19 deaths recorded by the U.S. in any month between June and October 2020, according to an ABC News' analysis of data compiled by The COVID Tracking Project, a volunteer-run effort to track the U.S. outbreak.

In total, the virus has claimed the lives of over 440,000 people in the U.S., which translates to about 1 in every 747 Americans, according to an ABC News analysis of data collected by Johns Hopkins University.

The U.S. death toll is approximately 147 times the total lives lost during the terrorist attacks on Sept. 11, 2001, and is around 65% of the total number of deaths that were recorded nationwide during the 1918 influenza pandemic.

Although the country's seven-day average of daily COVID-19 deaths appears to be plateauing, the U.S. is still reporting an average of just over 3,100 new deaths from the disease per day, according to The COVID Tracking Project data.

More than 6 million COVID-19 infections were diagnosed nationwide during the month of January, making it the country's second-worst month of the pandemic in terms of confirmed cases, data shows.

Over the weekend, the country's cumulative tally of confirmed cases surpassed 26 million, which signifies that one in every 12 Americans has now tested positive for COVID-19. However, the national seven-day average of daily COVID-19 cases has dropped by 32.3%, the lowest average the country has seen since mid-November, according to The COVID Tracking Project data.

COVID-19 hospitalizations also continue to decline rapidly across the country. The number of COVID-19 patients currently hospitalized nationwide is the lowest since late November.

In total, more than 800,000 people have been hospitalized with COVID-19 in the U.S. since the start of the pandemic, according to The COVID Tracking Project data.

ABC News' Brian Hartman and Arielle Mitropoulos contributed to this report.