Only one new death related to COVID-19 was reported by Michigan's health department on Friday.

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The health department also reported 1,073 new lab-confirmed cases of the coronavirus on Friday. That brings Michigan's pandemic total number of cases to 586,425, with 15,454 deaths.

The Ottawa County Department of Public Health reported 24 new cases of the virus and no new deaths related to COVID-19 on Friday. The county's pandemic total number of cases is now 22,322, with 20,905 recovered and a death toll of 341.

The state health department said Muskegon County had four new confirmed cases of the virus on Friday, raising its pandemic total to 10,561.

More good news: Muskegon County hasn't had a report of a COVID-19-related death in more than three weeks, so its pandemic death toll remains steady at 304.

Third US vaccine could raise question: Which shots are best?

By Lauran Neergaard and Matthew Perrone/Associated Press

WASHINGTON — The nation is poised to get a third vaccine against COVID-19, but because at first glance the Johnson & Johnson shot may not be seen as equal to other options, health officials are girding for the question: Which one is best?

If cleared for emergency use, the J&J vaccine would offer a one-dose option that could help speed vaccinations, tamp down a pandemic that has killed more than 500,000 people in the U.S. and stay ahead of a mutating virus.

"I think it's going to be huge," said Dr. Virginia Caine, director of the public health department in Marion County, Indiana, which includes Indianapolis. She expects the easier-to-use vaccine will give local officials more flexibility for mobile vaccination clinics or pop-up events.

The challenge will be explaining how protective the J&J shot is after the astounding success of the first U.S. vaccines.

Two doses of the Pfizer and Moderna shots were found to be about 95% effective against symptomatic COVID-19. The numbers from J&J's study are not that high, but it's not an apples-to-apples comparison. One dose of the J&J vaccine was 85% protective against the most severe COVID-19. After adding in moderate cases, the total effectiveness dropped to about 66%.

"I don't think it's a second-tier vaccine, but we've got to avoid that perception," said Dr. Thomas Balcezak of Yale New Haven Health System.

The J&J shot was tested in the U.S., Latin America and South Africa at a time when more contagious mutated versions of the virus were spreading. That wasn't the case last fall, when Pfizer and Moderna were wrapping up testing, and it's not clear if their numbers would hold against the most worrisome of those variants.

Importantly, the Food and Drug Administration reported this week that, just like its predecessors, the J&J shot offers strong protection against the worst outcomes. By 28 days after the injection, there were no hospitalizations or deaths in study volunteers given the J&J shot, compared with 16 hospitalizations and seven deaths in those given a dummy shot.

Independent advisers to the FDA on Friday discussed J&J's study data ahead of a vote on whether to recommend widespread use of the vaccine, setting the stage for a final decision within days.

While J&J is seeking FDA authorization for its single-dose version, the company is also studying whether a second dose boosts protection.

Panel member Dr. Paul Offit warned that launching a two-dose version of the vaccine down the road might cause problems.

"You can see where that would be confusing to people thinking, 'Maybe I didn't get what I needed,'" said Offit, a vaccine expert at Children's Hospital of Philadelphia. "It's a messaging challenge."

J&J representatives said they chose to begin with the single shot because the World Health Organization and other experts agreed it would be a faster, more effective tool in an emergency.

U.S. cases and hospitalizations have fallen dramatically since their post-holiday January peak. But Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, worries that new variants may counter those gains and cited increasing cases over the past three days.

"We may be done with the virus, but clearly the virus is not done with us," Walensky said at a White House briefing. While it's too early to tell if the trend will last, she said adding a third vaccine "will help protect more people faster."

If the J&J vaccine is authorized, U.S. officials expect to have only a few million doses to divide between states in initial shipments. But by the end of March, J&J has said it can supply enough to vaccinate 20 million people — a much-needed boost to stretched supplies.

The bottom line: "Whatever vaccine is being offered is what you want," said University of Pennsylvania immunologist E. John Wherry.

Still, the nuances of the vaccines raise ethical questions.

At Yale, Balcezak is struggling with how to make the best use of the J&J shot's advantages without appearing to target it to underserved populations. For example, it's a logical choice for homeless shelters where people may have moved on before their second dose of the Pfizer or Moderna vaccine.

"I'm very worried about how that would be perceived," said Balcezak.

The J&J vaccine is also easier to handle, lasting three months in the refrigerator compared to the Pfizer and Moderna options, which must be frozen.

In Washington state, health officials see some clear need for one-and-done vaccinations — including sailors in the maritime industry, who can spend months on cargo and fishing vessels.

"This is the ideal vaccine for them," said Dr. Scott Lindquist of the Washington State Department of Health. With the two-dose vaccines, the state "had to send second doses onward to the next port of call."

Other parts of the world already are facing which-is-best challenges. Consider AstraZeneca's vaccine, cleared for use in Britain and Europe after data suggested it was about 70% effective. Italy's main teachers' union recently protested when the government decided to reserve Pfizer and Moderna shots for the elderly and designate AstraZeneca's vaccine for younger, at-risk workers. Canada became the latest country Friday to allow use of AstraZeneca's vaccine.

In the U.S., health officials say it's critical for the government to send a clear message.

"Right now, it's not vaccine against vaccine, it's vaccine against virus," said Dr. Nirav Shah, director of the Maine Center for Disease Control and Prevention.

AP journalists Carla K. Johnson and Ricardo Alonso-Zaldivar contributed to this report. The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education. The AP is solely responsible for all content.

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