The Biden administration on April 16 said it will invest $1.7 billion to help states and the U.S. Centers for Disease Control and Prevention fight Covid-19 variants that are rapidly spreading across the United States.

Calcium, a full-service, independent healthcare marketing agency, announced today the opening of a new office in Miami. 

New York City-based Pfizer announced plans to create a professional services office in Tampa, Florida and a major construction project in Portage, Michigan.

Several U.S. states on March 25 announced broad expansions of their Covid-19 vaccine rollouts, with California opening immunizations to all adults aged 50 and older starting April 1 and Florida making anyone 40 and up eligible from March 22.

The United States crossed 30 million coronavirus cases on March 24, according to a Reuters tally, as states accelerate the vaccination process by lowering age limits.

Nearly 9 million Americans had been given their first Covid-19 vaccination dose as of Jan. 11, the U.S. Centers for Disease Control and Prevention said, as states scrambled to step up inoculations that have yet to slow the roaring pandemic.

More than two-thirds of the 15 million coronavirus vaccines shipped within the United States have gone unused, U.S. health officials said on Jan. 4, as the governors of New York and Florida vowed to penalize hospitals that fail to dispense shots quickly.

Initially traced to about 100 cases of Covid-19 that spread across the United States, the number of infections linked to a Biogen corporate conference held in February 2020 at the Boston Marriott Long Wharf Hotel has grown exponentially and researchers estimate the total could be as many as 300,000.

The number of new Covid-19 cases in the United States hit another record high, rising 18% week-over-week to more than 575,000, while deaths inched up 3%, according to a Reuters analysis of state and county reports.

The United States set a new all-time high for coronavirus cases confirmed in a single 24-hour period, reporting just over 100,000 new infections to surpass the record total of 91,000 posted a day earlier, according to a Reuters tally.