CoronaVirus Americas: Dr. Seema Yasmin Explains

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Yorbing Staff Saturday April 25, 2020

*Featured: WIRED, March 20, 2020, Youtube.

The lockdown is to prevent further infection because of how it spreads. Just pay close attention to below’s explanation…1. on herd immunity either through vaccination of becoming infected but immune to the infection.This method is still being considered… 2. Anti-body testing, meaning scientist look at how protective antibodies are to this virus and how long those antibodies stick around then countries need to do wide-spread antibody testing to test who is immune to go back to work and who is not, and how quick to start normal activities…Check her below:

Dr. Seema Yasmin

Video: WIRED, April 17, 2020, Youtube

New York Times, ‘Hidden Outbreaks Spread Through U.S. Cities Far Earlier Than Americans Knew, Estimates Say’, By Benedict Carey And James Glanz, April 23, 2020

By the time New York City confirmed its first case of the coronavirus on March 1, thousands of infections were already silently spreading through the city, a hidden explosion of a disease that many still viewed as a remote threat as the city awaited the first signs of spring.

Hidden outbreaks were also spreading almost completely undetected in Boston, San Francisco, Chicago and Seattle, long before testing showed that each city had a major problem, according to a model of the spread of the disease by researchers at Northeastern University who shared their results with The New York Times.

Even in early February — while the world focused on China — the virus was not only likely to be spreading in multiple American cities, but also seeding blooms of infection elsewhere in the United States, the researchers found.

Go to the site for the graphics

As political leaders grappled in February with the question of whether the outbreak would become serious enough to order measures like school closures and remote work, little or no systematic testing for the virus was taking place.

“Meanwhile, in the background, you have this silent chain of transmission of thousands of people,” said Alessandro Vespignani, director of the Network Science Institute at Northeastern University in Boston, who led the research team.

Modeling the spread of a disease is inherently inexact, involving estimates of how often people come in contact and transmit the virus as they travel, work and socialize. The model estimates all infections, including those in people who may experience mild or no symptoms and those that are never detected in testing.

Other disease researchers said the findings of Dr. Vespignani’s team were broadly in line with their own analyses. The research offers the first clear accounting of how far behind the United States was in detecting the virus. And the findings provide a warning of what can recur, the researchers say, if social distancing restrictions are lifted too quickly.

Dr. Robert R. Redfield, the director of the Centers for Disease Control and Prevention, said last week that American health officials had been successful in tracking the first known cases and their contacts in the United States before the outbreak got out of control.

“Through Feb. 27, this country only had 14 cases,” he said during a briefing. “We did that isolation and that contact tracing, and it was very successful. But then, when the virus more exploded, it got beyond the public health capacity.”

But the new estimates of coronavirus infections are vastly higher than those official counts.

By late February, as the world’s attention shifted to a dire outbreak in Italy, those 14 known American cases were a tiny fraction of the thousands of undetected infections that the researchers estimated were spreading from person to person across this country.

And more cases may have been arriving in the United States by the day.

“Knowing the number of flights coming into New York from Italy, it was like watching a horrible train wreck in slow motion,” said Adriana Heguy, director of the Genome Technology Center at New York University’s Grossman School of Medicine.

Dr. Heguy’s team and another at the Icahn School of Medicine at Mount Sinai have found through genetic analysis that the seeds of most infections in New York came from multiple locations in Europe, rather than directly from China. [highlights Mine].

“We weren’t testing, and if you’re not testing you don’t know,” Dr. Heguy said. The new estimates suggesting that thousands of infections were spreading silently in the first months of the year “don’t seem surprising at all,” she said.

There are other signs that the outbreak was worse at an earlier point than previously known. This week, health officials in Santa Clara County, Calif., announced a newly discovered coronavirus-linked death on Feb. 6, weeks earlier than what had been previously thought to be the first death caused by the virus in the United States.

Check the rest of the story here.


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