"We just absolutely cannot risk the health of children, their well-being and safety, or any of our colleagues," said Karla Hernandez-Mats, president of the United Teachers of Dade union and a middle school teacher herself.
"We're probably going to have to go to a full shutdown mode. I can't see the schools reopening except with the 100 per cent virtual model."
Parents have until Thursday to notify the Miami-Dade school district of their decision whether they will send their kids to school this northern autumn or have them study online from home.
"Children can get get the virus in their bodies and get contaminated just like anybody else," said Florida International University epidemiologist Dr Aileen Marty, who has been advising the Miami school district on its reopening plans.
DeSantis has argued that children have not proven to be vectors for the disease and that if retailers like Walmart can be reopened safely, then schools should be able to as well.
But he made those arguments with a notable caveat, saying that each county should make it own decision on reopening in consultation with local health officials.
The debate is hardly limited to Florida.
In Detroit, where summer school classes for hundreds of students opened today, protesters blocked a school bus yard with tree branches.
"When I visited schools this morning I knew we were doing the right thing for children," schools Superintendent Nikolai Vitti said, in a post on Twitter.
"Covid is not going away. Many of our children need face-to-face, direct engagement," he said.
But lawyer Shanta Driver said she planned to file a lawsuit to stop the in-person instruction.
"I'm not going back until this pandemic is defeated. There is not a safe way to return to school while this virus is spreading uncontained," said teacher Benjamin Royal.
Officials in California's two largest school districts, Los Angeles and San Diego, announced that students will stick to online learning from home when school resumes next month, rather than return to classrooms.
The districts cited research about school safety experiences from around the world, along with state and local health guidance.
"One fact is clear: Those countries that have managed to safely reopen schools have done so with declining infection rates and on-demand testing available. California has neither," the districts said in a joint statement.
Los Angeles, the second largest school district in the US, has about 730,000 students and San Diego serves about 135,000 students.
In North Carolina, which reported its highest one-day number of cases and hospitalisations, Governor Roy Cooper has asked school districts to prepare three re-opening plans that include options for in-person and fully remote learning. His decision is expected later this week.
But teacher Becky Maxam, whose husband is considered high-risk for the virus because of a genetic heart condition, said she doesn't plan to return if her Charlotte middle school reopens.
"I'm not going back if we're opening up. I can't risk my family," Maxam said. "I think we should be virtual until we find a vaccine or cases go down much more than what they are."
The debate over what to do about schools came as a pair of WHO experts were in China for a mission to trace the origin of the pandemic.
The virus was first detected in central China's city of Wuhan late last year. Beijing had been reluctant to allow a probe but relented after scores of countries called on the WHO to conduct a thorough investigation.
China has argued that the virus might have originated outside of China and has angrily denied allegations that it covered up the scale of the outbreak as infections first began to spread.
Also today, the United Nations warned that the pandemic could cause 130 million more people worldwide to go hungry this year.
UN officials estimate there were about 690 million people in 2019 who went hungry worldwide, with the majority in Asia and Africa.
"While it is too soon to assess the full impact of the lockdowns and other containment measures," the agency said that, at a minimum, another 83 million would go hungry as a result of the pandemic.
The WHO's Tedros said the consequences would be worst for the world's most vulnerable populations. But he noted that the most recent surge in cases had come in the Americas. The United States and Brazil alone account for more than a third of all global deaths from the disease.
"I really do think we could control this, and it's the human element that is so critical. It should be an effort of our country. We should be pulling together when we're in a crisis, and we're definitely not doing it," said University of Florida epidemiologist Cindy Prins.
In Japan, more than 30 Marines tested positive at the Futenma US air station on Okinawa, where infections among American service members have rapidly risen to more than 90 since last week. Okinawa is home to more than half of about 50,000 American troops based in Japan.
In other parts of the world, the number of infections has been rising dramatically in India, South Africa and Brazil, whose virus-denying president has tested positive.
India, which has the most confirmed virus cases after the US and Brazil, reported a record daily surge of 28,701 new cases reported in the past 24 hours. Authorities in several cities are reinstating strict lockdowns after attempting to loosen things up to revive an ailing economy.
In South Africa, which accounts for over 40 per cent of all the reported coronavirus cases in Africa, President Cyril Ramaphosa reimposed a ban on alcohol sales and a night-time curfew to reduce the number of people needing emergency treatment so hospitals have more beds to treat Covid-19 patients.
- AP
