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The document from the Centers for Disease Control and Prevention (CDC) outlines unpublished data that shows fully vaccinated people might spread the Delta variant, first identified in India, at the same rate as unvaccinated people, reports said.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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3 Indians arrested in Canada for shooting outside home
Ottawa (PTI): Three Indian nationals have been arrested by Canadian police on an anti-extortion patrol and charged after bullets were fired at a home.
Harjot Singh (21), Taranveer Singh (19) and Dayajeet Singh Billing (21) face one count each of discharging a firearm, and all have been remanded in custody until Thursday, the Surrey Police Service (SPS) said in a statement on Monday.
The suspects were arrested by patrol officers after an early morning report of shots fired and a small fire outside a home in Surrey's Crescent Beach neighbourhood, the LakelandToday reported.
On February 1, 2026, the SPS members were patrolling in Surrey’s Crescent Beach neighbourhood when reports came in of shots being fired and a small fire outside a residence near Crescent Road and 132 Street.
The three accused were arrested by SPS officers a short time later, the statement said.
SPS’s Major Crime Section took over the investigation, and the three men have now been charged with Criminal Code offences, it said.
All three have been charged with one count each of discharging a firearm into a place contrary to section 244.2(1)(a) of the Criminal Code.
The investigation is ongoing, and additional charges may be forthcoming. All three have been remanded in custody until February 5, 2026.
The SPS has confirmed they are all foreign nationals and has engaged the Canada Border Services Agency, it said.
One of the suspects suffered injuries, including two black eyes, the media report said.
Surrey police Staff Sgt. Lindsey Houghton said on Monday that the suspect had refused to comply with instructions to get out of the ride-share vehicle and started to "actively resist."
"As we were trained, he was taken to the ground and safely handcuffed," said Houghton.
A second suspect with a black eye was also injured in the arrest after refusing to comply, Houghton said.
The arresting officers were part of Project Assurance, an initiative that patrols neighbourhoods that have been targeted by extortion violence.
Houghton said the Canada Border Services Agency (CBSA) is also involved because the men are foreign nationals, and the trio may face additional charges.
It's not clear if the men are in the country on tourist visas, a study permit, or a work permit, but Houghton said CBSA has started its own investigation into the men's status.
Surrey has seen a number of shootings at homes and businesses over the last several months, but there's been an escalation since the new year.
