On June 11, Beijing time, A month after the economy reopened, Florida this week reported 8553 new confirmed coronavirus cases, the highest number since the outbreak began. In Texas, hospital admissions jumped 6.3 percent Tuesday to 2056, the highest level since the outbreak and the third consecutive day of increase. California has the highest number of hospitalizations since May 13, and has risen nine days in the past 10 days.
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Eric toner, a senior scholar at the Johns Hopkins Center for health and safety, said: "there is a new wave of outbreaks in parts of the United States. It's small, it's far away so far, but it's here. "
Although the outbreak comes as states reopen for weeks, it is unclear whether they are linked to increased economic activity. In Georgia, where hair salons, tattoo shops and fitness centers have been running for a month and a half, experts are puzzled by the stagnant number of new cases in the state.
Confusing differences even occur within states. In California, San Francisco reported zero new cases for three consecutive days this week, but Los Angeles County reported more than half of the state's new cases. In a podcast, Stephen Hahn, director of the U.S. Food and drug administration, said the White House coronavirus task force had not found any link between the economic reopening and the increase in covid-19 cases.
But in some states, the number of new cases has outpaced the number of tests, raising concerns about whether the virus is under control and whether it could overburden hospitals. Toner said it would take weeks to know, but it would be "too late" to respond.
Nearly 2 million people have been confirmed infected and more than 110000 people have died since the new crown epidemic began to spread across the United States at the beginning of this year.
The number of cases was expected to increase as restrictions eased, after a nationwide pandemic blockade helped contain the spread of the virus. This trend has been observed in 22 states in recent weeks, although growth has been steady but slow in many. Because of the low overall level, outbreaks of the virus in easily transmissible environments (such as nursing homes or meat packaging plants) may significantly affect this number.
But experts see evidence of a possible second round in Arizona, Texas, Florida and California. Jeffrey Morris, director of the Department of Biostatistics at the University of Pennsylvania's Perelman School of medicine, says Arizona's problems seem to be more serious.
In the past two weeks, the number of new cases per day in Arizona has surged to a new high of 1187 on June 2.
According to policylab, people in Brazoria County, near Galveston, on the Gulf Coast, saw only a 6% reduction in visits to non essential places of business, compared with about 50% in New York City and Los Angeles County.
Georgia, by contrast, is the first state in the United States to reopen. The number of new cases there has stagnated.
Despite some local outbreaks, "their sea level has not risen," said David Rubin, director of policylab, which has been simulating the spread of the virus across the country. "They have always maintained this fragile balance."
California is the first state in the United States to impose an epidemic prevention blockade due to coronavirus. It is slower than most states to reopen.
Even so, as more business picks up, the state sees a rebound in the number of people hospitalized by covid-19 over the past two weeks. The number of confirmed cases is also increasing, although state officials blame the increase in testing and say it is a sign of their readiness.
To some extent, the increase in the number of confirmed cases suggests that the virus has spread to places that have largely avoided the first round of infection, including Imperial County in the desert southeast of California. But in some of the areas most affected by the first wave, including Los Angeles County, the virus still exists. The number of inpatients there is lower than in early May, but the death toll remains high, with 500 deaths in the past week alone.
Barbara Ferrer, Los Angeles County's director of public health, said in an interview that the region may not have seen the end of the first wave of outbreaks. Despite fears of contagion from the sprawling mass demonstrations, she believes the reopening of the economy will have a greater impact.
The United States has long been preparing for another wave of coronavirus outbreaks, but future outbreaks are likely to take place in different ways. Even when the economy reopens, considerations such as social evacuation and wearing masks, as well as personal caution, can have a lasting impact.
But experts are also preparing for the fall, when weather changes and back to school plans could have devastating effects.
"The second wave will not be exactly the same as the first," said Lance Waller, a professor at the Rawlings School of public health at Emory University in Atlanta
Daniel Lucey of the American Institute of infectious diseases compares the new pattern of the virus to a day spent on the beach: the United States has been preparing for another "high tide," such as the wave that engulfs New York City. But today is a low tide, "the tide will always come.".