Delta variant may spread as easily as chickenpox, cause more severe infection: Reports
New York, Jul 30: The Delta variant of the coronavirus may cause more severe illness than all other known versions of the virus and spread as easily as chickenpox, media reports quoting an internal document from the US health authority said.
The document from the Centers for Disease Control and Prevention (CDC) outlines unpublished data that shows fully vaccinated people might spread the Delta variant, first identified in India, at the same rate as unvaccinated people, reports said.
The contents of the document a slide presentation were first reported by The Washington Post on Thursday.
Dr Rochelle P Walensky, the director of the CDC, acknowledged on Tuesday that vaccinated people with so-called breakthrough infections of the Delta variant carry just as much virus in the nose and throat as unvaccinated people and may spread it just as readily, if less often.
But the internal document lays out a broader and even grimmer view of the variant.
The Delta variant is more transmissible than the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu and smallpox, and it is as contagious as chickenpox, according to the document, a copy of which was also obtained by The New York Times.
The Delta variant originally known as B.1.617.2 might cause more severe disease, according to the document.
The immediate next step for the agency is to acknowledge the war has changed, the document said.
The document's tone reflects alarm among CDC scientists about Delta's spread across the country, the NYT quoted a federal official, who has seen the research described in the document, as saying.
The agency is expected to publish additional data on the deadly variant on Friday.
The CDC. is very concerned with the data coming in that Delta is a very serious threat that requires action now, the official said.
There are roughly 35,000 symptomatic infections per week among 162 million vaccinated Americans, according to data collected by the CDC as of July 24 that was cited in the internal presentation.
But the agency does not track all mild or asymptomatic infections, so the actual incidence may be higher.
Infection with the Delta variant produces virus amounts in the airways that are tenfold higher than what is seen in people infected with the Alpha variant, which is also highly contagious, the document noted.
The amount of virus in a person infected with Delta is a thousandfold more than what is seen in people infected with the original version of the virus, according to one recent study.
The CDC document relies on data from multiple studies, including an analysis of a recent outbreak in Provincetown, Massachusetts, which began after the town's Fourth of July festivities.
Walensky told CNN that the Delta variant "is one of the most transmissible viruses we know about. Measles, chickenpox, this -- they're all up there."
And she said everyone in schools students, staff and visitors should wear masks at all times.
"The measures we need to get this under control they're extreme. The measures you need are extreme," Walensky said.
"The bottom line was that, in contrast to the other variants, vaccinated people, even if they didn't get sick, got infected and shed virus at similar levels as unvaccinated people who got infected," Walter Orenstein, who heads the Emory Vaccine Center and who viewed the documents, told CNN.
But vaccinated people are safer, the document indicates.
"Vaccines prevent more than 90 per cent of severe disease, but may be less effective at preventing infection or transmission," it reads.
"Therefore, more breakthrough and more community spread despite vaccination," the document adds.
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ACB case against Sisodia, Jain a political move to pressurise them: AAP
New Delhi (PTI): The Aam Aadmi Party on Wednesday said the ACB's case against its leaders Manish Sisodia and Satyendar Jain was registered to "pressurise and scare" them as they were recently appointed as incharge and co-incharge of Punjab party unit.
The Anti-Corruption Branch (ACB) of the Delhi government has filed a case against former deputy CM and education minister Sisodia, and ex-PWD minister Jain, over alleged corruption in the construction of government schools.
The scam is pegged at around Rs 2,000 crore and involved awarding contracts at highly inflated rates with classrooms reportedly built at Rs 24.86 lakh each, nearly five times the usual cost, the ACB added in a statement.
Reacting to the development, the BJP said there was corruption in the construction of schools in Delhi under the previous AAP government.
AAP national media in-charge Anurag Dhanda in a press conference dismissed the charges and said the case was a "political" move to "pressurise and scare" Sisodia and Jain.
"The way cases are being registered against Sisodia and other leaders, I feel there could soon be cases against him for occupying the minister's seat, for forgetting to put a comma or a full stop in a document," Dhanda said.
Dhanda added that the BJP government does no work, instead it files cases against AAP leaders on every matter.
"It can not be a mere coincidence that earlier a case was registered against party leader Durgesh Pathak when he became co-incharge of Gujarat. Now, a case has been registered against Sisodia and Satyendar Jain who are in charge and co-incharge of the Punjab unit of AAP," Dhanda stated.
Earlier in March, the AAP appointed Sisodia as in-charge and former minister Jain as co-in-charge of the Punjab unit of the party.
"The BJP should understand it well that AAP leaders are not scared by their agencies like ED and CBI or such empty threats," Dhanda added.
Delhi BJP president Virendra Sachdeva demanded the ACB to probe the role of then chief minister of Delhi Arvind Kejriwal in the alleged scam.
"This is a decisive moment in the fight against corruption of AAP and its previous government in Delhi," he said.
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