As restrictions drop, new coronavirus infections in the U.S. begin to rise after months of declines

New coronavirus infections are rising in several U.S. states, despite record vaccinations — an increase experts attribute to the growing reach of new variants and widespread pandemic fatigue after a year of public health restrictions. The seven-day average of newly reported cases climbed 2.6 percent on Sunday, even as overall hospitalizations and deaths remain down.

In Florida, a state where coronavirus measures are lax, authorities in Miami Beach declared a state of emergency and imposed a nighttime curfew this weekend as large crowds of rowdy spring break revelers turned violent and disruptive. A city commissioner, David Richardson, blamed the unrest on “a lot of pent-up demand from the pandemic and people wanting to get out.” “And our state has been publicly advertised as being open, so that’s contributed to the issue,” he said.

Here are some significant developments:

  • Oxford University and AstraZeneca reported Monday morning that their “vaccine for the world” was safe and 79 percent effective overall, according to data from a long-awaited clinical trial in the United States, Chile and Peru.

  • Pregnant women who receive a coronavirus vaccine not only acquire protective antibodies against the virus for themselves but also may pass along immunity to their babies, emerging research shows.

  • Some people in the United Arab Emirates are being invited to receive a third shot of the Sinopharm coronavirus vaccine after antibody tests indicated they did not have a sufficient immune response following two doses of the Chinese-made shot. There has been a similar report out of China as well.

  • Miami Beach commissioners voted to impose an 8 p.m. curfew in the entertainment district on weekends until April 11, the end of the spring break period amid an uncontrolled flood of revelers.

  • At least 81.4 million people have received one or both doses of a coronavirus vaccine in the United States. More than 542,000 people have died from coronavirus in the country, out of roughly 29.8 million confirmed cases.

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