A new Delta descendant is rising in the UK. Here’s what to know

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Little is known about AY.4.2. Some experts have suggested that it may be slightly more permeable than the original Delta version, although this has yet to be confirmed. Although it is responsible for a growing number of infections, it is not yet classified as a “type of concern” in the UK. It is currently rare beyond Britain, with a smaller number of cases being reported in Denmark and the US, expert Francois Balloux told the Science Media Center (SMC) on Tuesday.

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“Since AY.4.2 is still at a fairly low frequency, a 10% increase in its transmission efficiency could only lead to a few additional cases. As such it is not driving the recent increase in the number of cases in the UK,” said Balloux. , professor and director of computational systems biology at the UCL Genetics Institute, told SMC.

While the new variants have repeatedly overtaken each other to become the dominant strain globally over the past year, experts say it is too early to know whether AY.4.2 will become significant. In the UK, “delta very rapidly surpasses the alpha version by summer” in just a few weeks, Deepti Gurdasani, a senior epidemiology lecturer at Queen Mary University in London, told Granthshala. “That’s not what we’re seeing here, we’re seeing a slow increase in the ratio which suggests that it’s not very permeable, it could be a little bit more permeable.


Balloux agreed, telling SMC that “it [is] There is no situation comparable to the emergence of alpha and delta which were far more permeable (50% or more) than any strain in circulation at the time. Here we are dealing with a potentially small increase in transmittance that will not have a comparable impact on the pandemic.”

AY.4.2 has attracted the attention of public health experts across the pond. Sunday in a series of tweetsDr. Scott Gottlieb, former US Food and Drug Administration commissioner, called for “urgent research” into this Delta branch and said it was a “reminder that we need stronger systems to identify, characterize new forms ”

The rise of AY.4.2 in the UK, however, is what scientists have warned during the pandemic: increased transmission could create new forms. The UK has the highest daily Covid-19 cases and death rate per million people in Western Europe since most pandemic restrictions were lifted in the summer. On Tuesday, it reported 223 Covid-19 deaths, the highest daily figure since the beginning of March, and health leaders urged the government to take measures such as mask mandates in enclosed spaces to help ease pressure on the health system. Requesting to start again.

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“The whole problem with this approach of living with the virus and allowing between 30,000 and 50,000 cases a day – which has been the UK’s case rate since [the summer] — Is [virus’s] The development will continue… we need to suppress the cases and suppress the virus,” Gurdasani said.

you asked We answered.

Q: When vaccinated people die of Covid-19, how do you explain that vaccines are still worth getting?

a: We need to start with the science and according to what the research shows Granthshala Medical Analyst Dr. Lena Veno. He said that Covid-19 vaccines are exceptionally effective in preventing disease and especially serious illness.

He said the most recent data from the US Centers for Disease Control and Prevention (CDC) shows they reduce the chance of testing positive for Covid-19 by six times and the chance of death by 11 times.

“This means that if you’re vaccinated, you’re six times less likely to get Covid-19 than someone who isn’t vaccinated. And you’re 11 times more likely to die from Covid-19 than someone who isn’t vaccinated. times less. It’s really excellent,” she said. said.

“However, Covid-19 vaccines don’t protect you 100%. No vaccine does, just the possibility that virtually no medical treatment is 100% effective. That doesn’t mean the vaccine doesn’t work, or that you have to take it.” Shouldn’t take it.”

send your questions here. Are you a health care worker fighting COVID-19? Message us on WhatsApp about the challenges you are facing: +1 347-322-0415.

reading of the week

Why Colin Powell’s cancer undermined his protection from the Covid-19 vaccine

Colin Powell, the first black US Secretary of State, died on Monday from complications from Kovid-19. Experts say his death shows how important it is for more people to be vaccinated and to stop the spread of the virus, Jane Christensen reports.

Powell was fully vaccinated, but a source close to the case confirmed to Granthshala that he had multiple myeloma, a type of blood cancer that affected his immune response to the vaccine, and that the virus was difficult to fight. Would make Powell’s chief of staff Peggy Sifrino said Powell, 84, also had Parkinson’s disease, a neurodegenerative disorder.

Although Covid-19 vaccines provide strong protection against serious illness and death in healthy people, multiple myeloma patients are among the immunocompromised groups that may not respond, as studies have shown. A study published in Nature in July showed that only 45% of patients with multiple myeloma developed an adequate response to the vaccine, while 22% had a partial response. A third had no answer.

Despite Powell representing a high-risk population group, some conservative media figures have dishonestly captured his death to cast doubt on the effectiveness of Covid-19 vaccines, Oliver Darcy writes.

These doctors are spreading wrong information about vaccines

Dr. Christian Northrup was a frequent guest on The Oprah Winfrey Show—an Ivy League-educated obstetrician-gynecologist who often spoke about women’s health and holistic medicine. She was a media darling, and in 2013 was included in Reader’s Digest’s annual list of the 100 Most Trusted People in America.

But Northrup is one of a small group of doctors who have emerged as a huge source of misinformation – whether social-media influencers or family doctors meeting with patients in person – on Covid-19. About vaccines, which are the most proven so far. An effective weapon against the deadliest pandemic in 100 years, Rob Kuznia, Scott Bronstein, Kurt Devine and Drew Griffin report.

Moscow orders people over 60 to stay at home for 4 months

Millions of Russians face tough new Covid-19 restrictions starting this week, after a slow vaccination campaign, an overwhelmed health care system, and widespread mistrust in the government plunged the country into the deadliest phase of the pandemic yet Is, Anna Chernova and Rob Pichetta report.

On Tuesday, Moscow’s mayor ordered all illiterate residents over 60, as well as those with “chronic illnesses,” to stay home for four months until the end of February, as the city grapples with a growing crisis.

The national government has also proposed introducing a non-working week in early November, but senior figures have begun to openly acknowledge that the situation is dire as Russia approaches a foggy winter.

Russia has recorded its highest number of daily cases and deaths at various times in recent days, and on Sunday recorded 1,002 official deaths – the first time the country has so far passed the four-digit death toll barrier.

Experts say delays in the vaccination program and failure in government messaging are the factors behind the risk of flooding hospitals across the country.

“I think the country is now falling into disaster,” Vasily Vlasov, a Russian epidemiologist and former adviser to the World Health Organization (WHO), told Granthshala.

top tip

Test-to-Stay Approach in US Schools

CDC is working with select school districts across the country to evaluate the practice of the test-to-stay approach.

This type of policy would prioritize testing to monitor students who may have been exposed to Covid-19, allowing students to continue attending classes if they test negative, rather than being quarantined. But there are many health experts who agree that quarantine is still necessary.

In an email to Granthshala, the CDC said it sees test-to-stay as a “promising practice” and that it is “working with the multiple jurisdictions implementing the trial to evaluate the effectiveness of this strategy.” Is.” But it is unclear when this guidance will be available. Read more about it here.


Credit : cnn.it

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