SHEFFIELD CENTER

As of Thursday, the city’s vaccination rates are at only 21%, about 10% less than Michigan’s vaccination rate.

As of Thursday, the city’s vaccination rates are at only 21%, about 10% less than Michigan’s vaccination rate.

The poll surveyed 3,544 likely voters across the six states from May 1 to 3, and has a margin of error of plus or minus 1.7 percentage points. Fears about the coronavirus have fallen in key 2020 swing states as Republican worries about the pandemic slide, according to a new CNBC/Change Research survey. But only 40% of GOP likely voters said the same. Those splits carried over from the mid-April poll, even as similar shares of Democratic and Republican voters lose paychecks. Like last month, the poll found a close race between Trump and apparent Democratic presidential nominee Joe Biden in the swing states.

The Food and Drug Administration on Monday tightened rules for coronavirus antibody tests, ordering manufacturers to submit emergency use authorization forms and data proving the tests work within 10 days or face possible removal. Serological, or antibody, tests can indicate whether a person has had Covid-19 and was either asymptomatic or recovered. So far, 12 antibody tests have been authorized by the FDA for emergency use, and more than 250 tests are currently the subject of a pre-EUA or EUA review, FDA Commissioner Stephen Hahn told reporters Monday during a press briefing. The federal agency is also providing performance threshold recommendations for antibody test developers and is introducing a streamlined process to support EUA submission forms, Hahn said. "High-quality antibody tests or serologic tests can help us understand a person and population's exposure to Covid-19," he added.