Delta Variant Grows Rapidly Inside A Person's Respiratory Tract, Study Says
3 years, 5 months ago

Delta Variant Grows Rapidly Inside A Person's Respiratory Tract, Study Says

NPR  

Delta Variant Grows Rapidly Inside A Person's Respiratory Tract, Study Says A study from China offers clues as to why the delta variant of the coronavirus is spreading so quickly around the world. First, the delta variant grows more rapidly inside people. DOUCLEFF: Second, the delta variant, on average, grows to higher levels inside a person's respiratory tract. So the average person infected today with the delta variant is likely sneezing out much more virus than a person with the original strain last summer.

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History of this topic

China's most used COVID shots effective against Delta variant: study
2 years, 11 months ago

China's most used COVID shots effective against Delta variant: study

China Daily  

BEIJING - China's two most widely used COVID-19 vaccines, developed by Sinovac and Sinopharm, were shown to be effective against the Delta variant of the coronavirus, a study based on real-world data in the country showed on Tuesday. The study did not generate sufficient data to deliver effectiveness readings for the two vaccines separately or by age groups, researchers from …

Delta variant major cause for COVID in children during second wave: ICMR study
2 years, 11 months ago

Delta variant major cause for COVID in children during second wave: ICMR study

Deccan Chronicle  

New Delhi: The Delta variant was the major cause of coronavirus infection in children's COVID-19 cases during the second wave in India, according to an Indian Council of Medical Research study. The most common lineages observed were Delta, followed by Kappa, Alpha and B.1.36, seen in 65.82 per cent, 9.96 per cent, 6.83 per cent and 4.68 per cent, respectively …

Omicron has ‘growth advantage’ over Delta, says Centre
3 years ago

Omicron has ‘growth advantage’ over Delta, says Centre

Live Mint  

A total of 961 cases of the Omicron variant of coronavirus have been reported across 22 states and union territories of the country so far, said the Union health ministry on Thursday. Further, quoting the World Health Organisation, the government said evidence shows that the Omicron variant has a growth advantage over Delta with a doubling time of two to …

With 70 times quicker spread, Omicron worries the world | Top developments
3 years ago

With 70 times quicker spread, Omicron worries the world | Top developments

India Today  

As the Omicron variant of coronavirus spreads at an unprecedented rate across the globe, India has gone on a high alert. INDIA'S CONCERNS In the wake of the rapid spread of the ‘super-variant’, Omicron, Maharashtra recorded 32 cases till Wednesday — the highest in the country — prompting the state government to extend the Covid-safety curbs in Mumbai till December …

A tantalizing clue to why omicron is spreading so quickly
3 years ago

A tantalizing clue to why omicron is spreading so quickly

NPR  

A tantalizing clue to why omicron is spreading so quickly Enlarge this image toggle caption NIAID-RML/Science Source NIAID-RML/Science Source Omicron is spreading lightning fast. Preliminary data, published online Wednesday, gives us the first look at how omicron may behave inside the respiratory tract — and the data offers a tantalizing clue as to why this heavily mutated variant is spreading …

US coronavirus: You don’t have to change holiday plans due to Omicron if you’re vaccinated, Fauci says. But don’t wait to get a booster
3 years, 1 month ago

US coronavirus: You don’t have to change holiday plans due to Omicron if you’re vaccinated, Fauci says. But don’t wait to get a booster

CNN  

CNN — As the first case of the Omicron variant in the US was detected on Wednesday, health officials are urging Americans not to wait any longer to receive a vaccination or booster to better protect themselves and others. “That’s where we’re hoping we’ll see with the Omicron variant, that if you get your levels high enough it’ll spill over …

Omicron coronavirus variant raises questions among scientists
3 years, 1 month ago

Omicron coronavirus variant raises questions among scientists

Live Mint  

The fast-spreading Omicron coronavirus variant recently identified in South Africa has virologists and health authorities on edge because of its many mutations, but much about its infectiousness and virulence remains unknown. The Centers for Disease Control and Prevention said Friday that Omicron hadn’t been identified in the U.S. “The U.S. variant surveillance system has reliably detected new variants in this …

China fights biggest Delta outbreak ever as Covid-19 cases keep growing
3 years, 1 month ago

China fights biggest Delta outbreak ever as Covid-19 cases keep growing

India Today  

China is battling its biggest COVID-19 outbreak caused by the highly transmissible Delta variant, with some areas restricting entry by people from a northeastern city where infections have grown faster than elsewhere in the country in the past week. A total of 1,308 domestically transmitted infections with confirmed symptoms were reported in the mainland between Oct. 17 and Nov. 14, …

Focus on full vaccination: The Hindu Editorial on India’s COVID-19 inoculation pace
3 years, 1 month ago

Focus on full vaccination: The Hindu Editorial on India’s COVID-19 inoculation pace

The Hindu  

Even as a small uptick in daily fresh cases has been reported in November, the Indian SARS-CoV-2 Genomics Consortium has said no new variants of interest or concern have been seen in India. Even as the daily fresh cases have been on an overall downward trend since a peak in early May, the pace of vaccination has slowed down sharply …

Covid can be transmitted by fully vaccinated people at home: Lancet study
3 years, 2 months ago

Covid can be transmitted by fully vaccinated people at home: Lancet study

Deccan Chronicle  

London: Fully vaccinated people can contract and pass on Delta variant of SARS-CoV-2, the virus that causes COVID-19, in household settings, but at lower rates than unvaccinated people, according to a study published in The Lancet Infectious Diseases journal. Researchers led by Imperial College London, UK, found that vaccinated people clear the infection more quickly, but the peak viral load …

Delta variant easily transmitted by vaccinated people in households: UK study
3 years, 2 months ago

Delta variant easily transmitted by vaccinated people in households: UK study

India Today  

The Delta coronavirus variant can transmit easily from vaccinated people to their household contacts, a British study found on Thursday, although contacts were less likely to get infected if they were vaccinated. Read: No evidence to suggest AY.4 variant of coronavirus has higher infectivity rate than Delta: Scientist They found infections in the vaccinated cleared more quickly, but the peak …

What Is The 'Delta Plus' Variant of the Coronavirus? Is It A Cause for Concern?
3 years, 2 months ago

What Is The 'Delta Plus' Variant of the Coronavirus? Is It A Cause for Concern?

News 18  

What is the delta plus variant? It’s a relative of the delta variant, identified by British scientists last month. The delta variant remains by far the most dominant variant in terms of global circulation said Maria Van Kerkhove, the World Health Organizations technical lead on COVID-19, at a public session this week. The U.N. health agency is currently tracking 20 …

This year's Covid-19 outbreak in Delhi shows herd immunity against Delta variant difficult: Study
3 years, 2 months ago

This year's Covid-19 outbreak in Delhi shows herd immunity against Delta variant difficult: Study

India Today  

The severe outbreak of Covid-19 in Delhi this year showed that the Delta variant of SARS-CoV-2 can infect individuals previously infected by a different variant of the coronavirus, highlighting the challenges of reaching herd immunity against the variant, according to an international team of scientists. The study, published in the journal Science on Thursday, also found that the Delta variant …

Pfizer/BioNTech COVID-19 vaccine effectiveness drops after 6 months: Study
3 years, 3 months ago

Pfizer/BioNTech COVID-19 vaccine effectiveness drops after 6 months: Study

Live Mint  

The effectiveness of the Pfizer Inc/BioNTech SE vaccine in preventing infection by the coronavirus dropped to 47% from 88% six months after the second dose, according to data published on Monday that U.S. health agencies considered when deciding on the need for booster shots. The analysis showed that the vaccine's effectiveness in preventing hospitalization and death remained high at 90% …

How contagious is Delta? How long are you infectious? Is it more deadly? A quick guide to the latest science
3 years, 3 months ago

How contagious is Delta? How long are you infectious? Is it more deadly? A quick guide to the latest science

ABC  

Delta was recognised as a SARS-CoV-2 variant of concern in May 2021 and has proved extremely difficult to control in unvaccinated populations. Around 10-30 per cent of people with COVID-19 will experience prolonged symptoms, known as long COVID, which can last for months and cause significant impairment, including in people who were previously well. In the Canadian study, Delta resulted …

Is the delta variant of the coronavirus worse for kids?
3 years, 3 months ago

Is the delta variant of the coronavirus worse for kids?

India TV News  

Experts say there's no strong evidence that it makes children and teens sicker than earlier versions of the virus, although delta has led to a surge in infections among kids because it's more contagious. Delta's ability to sp Weekly infection rates among US children earlier this month topped 250,000, surpassing the wintertime peak, according to data from the American Academy …

Delta Covid variant now spread to 185 countries: WHO
3 years, 3 months ago

Delta Covid variant now spread to 185 countries: WHO

India TV News  

The Delta Covid variant is the current dominant strain of the infectious virus, with its presence reported in 185 countries, as of September 21, the World Health organisation has said. "The Delta variant now accounted for 90 per cent of the sequences submitted to GISAID with a sample collection date," the global health agency said in its weekly epidemiological update …

What's driving Delta Covid variant to spread
3 years, 4 months ago

What's driving Delta Covid variant to spread

India TV News  

The ability to evade neutralising antibodies while increasing infectivity is the reason why the Delta variant of SARS-CoV-2 has turned dominant in several countries including the UK, the US and India, according to an international team of researchers. Researchers from National Centre for Disease Control, Delhi, under the Ministry of Health; CSIR Institute of Genomics and Integrative Biology, Delhi, and …

Increased infectivity, ability to escape immunity drove Delta variant: Study
3 years, 4 months ago

Increased infectivity, ability to escape immunity drove Delta variant: Study

Deccan Chronicle  

New Delhi: The Delta variant of the SARS-CoV-2 virus, which has become the dominant strain in India and many other countries, most likely spread through its ability to evade neutralising antibodies and increased infectivity, according to a study published in the Nature Journal on Tuesday. The team found that the Delta variant virus was 5.7-fold less sensitive to the sera …

Covid US: Infections driven by Delta variant seem to have peaked after analysis of two-month pattern
3 years, 4 months ago

Covid US: Infections driven by Delta variant seem to have peaked after analysis of two-month pattern

Daily Mail  

The Covid Delta variant may finally have started to peak in the US - amid speculation it has followed the same two month trajectory as other prior mutations. Cycles of the Delta variant have also lasted around two months in many countries that were struck by the virus earlier than the United States. By the end of May, two months …

Delta variant of COVID-19 doubles risk of hospitalisation than Alpha, finds Lancet study
3 years, 4 months ago

Delta variant of COVID-19 doubles risk of hospitalisation than Alpha, finds Lancet study

Firstpost  

In the study, researchers analysed healthcare data from 43,338 cases in England between 29 March and 23 May, 2021. Only 1.8% of the cases, regardless of variant, had received both doses of the vaccine, 24% had been vaccinated once and 74% were unvaccinated Paris: The Delta variant of the virus that causes COVID-19 doubles the risk of hospitalisation compared to …

Delta variant doubles COVID hospital risk: Study
3 years, 4 months ago

Delta variant doubles COVID hospital risk: Study

Al Jazeera  

A British study suggests people who get COVID-19 from the Delta variant are about twice as likely to be hospitalised compared with the Alpha variant. The Delta variant of the coronavirus that causes COVID-19 doubles the risk of hospitalisation compared with the Alpha variant it has supplanted as the dominant strain worldwide, researchers reported in The Lancet on Saturday. “We …

Covid-19 hospitalization risk doubles with Delta, UK study suggests
3 years, 4 months ago

Covid-19 hospitalization risk doubles with Delta, UK study suggests

CNN  

CNN — A new study adds to growing evidence suggesting that the Delta coronavirus variant is not only highly transmissible, but also more dangerous. “The results suggest that patients with the Delta variant had more than two times the risk of hospital admission compared with patients with the Alpha variant,” researchers from Public Health England and the University of Cambridge …

Natural immunity from Covid infection could be stronger than vaccination. Israeli study suggests
3 years, 4 months ago

Natural immunity from Covid infection could be stronger than vaccination. Israeli study suggests

Daily Mail  

Natural immunity from previous COVID-19 infection may offer stronger protection against the Indian 'Delta' variant than immunity from full vaccination, a new study suggests. Participants who were double jabbed were 5.96 times more likely to be infected and 7.13 times more likely to experience symptoms, a new study found After three months, risk of infection was 13.06 times higher among …

How China defeated a major Covid-19 Delta outbreak within a month
3 years, 4 months ago

How China defeated a major Covid-19 Delta outbreak within a month

India Today  

Has the People's Republic of China found the antidote to the Delta variant of coronavirus? On August 23, the Chinese mainland reported zero new local cases for the first time, marking a success in containing the most severe Covid-19 outbreak since the beginning of 2021 and not a single death had occurred during the entire infection period. On August 22, …

Curbing Delta: The Hindu Editorial on the variant that drives India’s COVID-19 infections
3 years, 4 months ago

Curbing Delta: The Hindu Editorial on the variant that drives India’s COVID-19 infections

The Hindu  

The overall number of coronavirus cases in India is on a downward trajectory though around 35,000 cases continue to be added almost daily. A weekly update from the Indian SARS-CoV-2 Genomics Consortium, a repository of labs tasked with monitoring variants of the coronavirus, says that the Delta variant remains most responsible for the continuing spread of infections in India. The …

The vaccinated are worried and scientists don’t have answers
3 years, 4 months ago

The vaccinated are worried and scientists don’t have answers

Deccan Chronicle  

Anecdotes tell us what the data can’t: Vaccinated people appear to be getting the coronavirus at a surprisingly high rate. One is that this is a hard question to address.” Absent clear public health messaging, vaccinated people are left confused about how to protect themselves. But we don’t have great clinical data.” One of the best known outbreaks among vaccinated …

Delta variant infects both vaccinated, unvaccinated people in Chennai: ICMR study
3 years, 4 months ago

Delta variant infects both vaccinated, unvaccinated people in Chennai: ICMR study

Live Mint  

An Indian Council of Medical Research study conducted in Chennai has found that the Delta variant of the Covid-19 virus has the potential to infect both vaccinated and unvaccinated people, However, it added that the chances of mortality among the vaccinated group is reduced. “An ICMR study conducted in Chennai has found that the Delta variant has the potential to …

Pfizer, AstraZeneca Covid vaccines less effective against Delta variant: Study
3 years, 4 months ago

Pfizer, AstraZeneca Covid vaccines less effective against Delta variant: Study

Deccan Chronicle  

London: The COVID-19 vaccines by Pfizer and AstraZeneca are less effective against the Delta variant of coronavirus compared to the Alpha variant, according to a study led by researchers at the University of Oxford. However, Delta infections after two vaccine doses had similar peak levels of virus as those in unvaccinated people, the researchers said. Two doses of Pfizer-BioNTech have …

Single vaccine dose gives little protection against Covid infections, finds hospital study
3 years, 4 months ago

Single vaccine dose gives little protection against Covid infections, finds hospital study

India Today  

A study conducted by the Ganga Ram Hospital in Delhi has found that a single vaccine dose offered no protection against symptomatic Covid-19 cases during the Delta variant surge. The Sir Ganga Ram Hospital in New Delhi has stated the study covered some of the hospital staff, 2716 of whom had received both doses and 623 had received a single …

What we know about the Delta variant
3 years, 4 months ago

What we know about the Delta variant

China Daily  

The Delta variant of the novel coronavirus is now spreading rapidly around the world. A study conducted by the Centers for Disease Control and Prevention of the United States shows the Delta variant is nearly twice as contagious as previous variants. The US CDC said people infected with the Delta variant can remain infectious for 18 days, longer than the …

What we know about the Delta variant?
3 years, 4 months ago

What we know about the Delta variant?

China Daily  

The Delta variant of the novel coronavirus is now spreading rapidly around the world. A study conducted by the Centers for Disease Control and Prevention of the United States shows the Delta variant is nearly twice as contagious as previous variants. An individual infected with Delta variant can infect five to nine other people, and it is more likely to …

What we know about the Delta variant?
3 years, 4 months ago

What we know about the Delta variant?

China Daily  

The Delta variant of the novel coronavirus is now spreading rapidly around the world. A study conducted by the Centers for Disease Control and Prevention of the United States shows the Delta variant is nearly twice as contagious as previous variants. An individual infected with Delta variant can infect five to nine other people, and it is more likely to …

What we know about the Delta variant?
3 years, 4 months ago

What we know about the Delta variant?

China Daily  

The Delta variant of the novel coronavirus is now spreading rapidly around the world. A study conducted by the Centers for Disease Control and Prevention of the United States shows the Delta variant is nearly twice as contagious as previous variants. An individual infected with Delta variant can infect five to nine other people, and it is more likely to …

Delta variant is 'four times more infectious' than the Wuhan version
3 years, 5 months ago

Delta variant is 'four times more infectious' than the Wuhan version

Dutch News  

Researchers at Maastricht University’s teaching hospital say that the Delta variant of coronavirus is around four times as infectious as the original version which originated in China. American health institute CDC recently described the Delta variant as ‘as infectious as chicken pox’ in an international document reported on by the New York Times. And one recent study even suggested that …

Delta variant is 'four times more infectious' than the Wuhan version
3 years, 5 months ago

Delta variant is 'four times more infectious' than the Wuhan version

Dutch News  

Researchers at Maastricht University’s teaching hospital say that the Delta variant of coronavirus is around four times as infectious as the original version which originated in China. American health institute CDC recently described the Delta variant as ‘as infectious as chicken pox’ in an international document reported on by the New York Times. And one recent study even suggested that …

Chinese vaccine developers target delta variant
3 years, 5 months ago

Chinese vaccine developers target delta variant

China Daily  

Doses of the Chinese Sinopharm vaccine against the coronavirus disease are seen. A handful of Chinese COVID-19 vaccine developers said recently that they have obtained the highly contagious delta variant and geared up to develop vaccines targeting the new strain, which has spread to more than 130 countries and regions. Last week, Yang Xiaoming, president of Sinopharm's China National Biotech …

Analysis: Delta variant upends politicians’ COVID calculus
3 years, 5 months ago

Analysis: Delta variant upends politicians’ COVID calculus

Associated Press  

WASHINGTON — President Joe Biden’s administration drew up a strategy to contain one coronavirus strain, then another showed up that’s much more contagious. “The single biggest mistake of the Biden presidency when it comes to COVID 19 was the CDC’s precipitous and chaotic change in masking guidance back in May,” said Dr. Leana Wen, a former Baltimore health commissioner and …

What should I know about the delta variant?
3 years, 5 months ago

What should I know about the delta variant?

Associated Press  

What should I know about the delta variant? It’s the most contagious coronavirus mutant so far in the pandemic, but COVID-19 vaccines still provide strong protection against it. Still, the U.S. Centers for Disease Control and Prevention cited the delta’s surge for its updated advice that fully vaccinated people return to wearing masks indoors in areas with high transmission. The …

What you should know about the Delta variant of coronavirus
3 years, 5 months ago

What you should know about the Delta variant of coronavirus

India Today  

It's the most contagious coronavirus mutant so far in the pandemic, but Covid-19 vaccines still provide strong protection against it. Still, the US Centers for Disease Control and Prevention cited the Delta's surge for its updated advice that fully vaccinated people return to wearing masks indoors in areas with high transmission. The change is based on recent research suggesting that …

Covaxin effective against Delta Plus variant of Covid-19: ICMR study
3 years, 5 months ago

Covaxin effective against Delta Plus variant of Covid-19: ICMR study

India Today  

Bharat Biotech's Covid-19 vaccine Covaxin is effective against Delta Plus variant of coronavirus, according to a study by the Indian Council of Medical and Research. "ICMR study shows #Covaxin is effective in Delta, Delta AY.1 and B.1.617.3 variants," the apex health research body said in a tweet. Covaxin, a whole-virion inactivated SARS-CoV-2 vaccine used for mass immunization in the country, …

The Delta Variant Forces The Trajectory Of The Pandemic Up Sharply
3 years, 5 months ago

The Delta Variant Forces The Trajectory Of The Pandemic Up Sharply

NPR  

The Delta Variant Forces The Trajectory Of The Pandemic Up Sharply The latest coronavirus surge is ratcheting up fears about the toll, and intensifying pressure to get more people vaccinated, wearing masks and perhaps start offering booster shots. STEIN: So, you know, we're seeing a flurry of new mask mandates in places like Atlanta, Washington, D.C., Nevada, and even vaccine …

Got a COVID vaccine? Here’s how it changes the risks of infection for you
3 years, 5 months ago

Got a COVID vaccine? Here’s how it changes the risks of infection for you

ABC  

It's understandable to be confused about exactly what sort of protection you'll get from a COVID-19 vaccine. Key points: Data from the UK shows both AstraZenecca and Pfizer vaccines stop about 80pc of infections A person who becomes infected after being vaccinated is half as likely to pass the virus on to the people they lived with The Pfizer vaccine …

Coronavirus | WHO sounds alarm over Delta variant surge
3 years, 5 months ago

Coronavirus | WHO sounds alarm over Delta variant surge

The Hindu  

Mushrooming outbreaks of the Delta variant prompted China and Australia to impose stricter COVID-19 curbs on Saturday, as the WHO urged the world to contain the mutation before it turns into something deadlier and draws out the pandemic. Worldwide, coronavirus infections are once again on the upswing, with the World Health Organization announcing an 80 percent average increase over the …

COVID Delta variant: With vaccines, how to stay safe
3 years, 5 months ago

COVID Delta variant: With vaccines, how to stay safe

LA Times  

As cases surge with the dominance of the Delta variant, experts still agree that COVID-19 vaccines offer the safest route out of the pandemic. Wearing masks indoors Researchers have found that when infected with the Delta variant, both vaccinated and unvaccinated people had similar viral loads in their upper respiratory systems. The confidential CDC document also cites discouraging reports about …

Study: Vaccinated people can carry as much virus as others
3 years, 5 months ago

Study: Vaccinated people can carry as much virus as others

Associated Press  

In another dispiriting setback for the nation’s efforts to stamp out the coronavirus, scientists who studied a big COVID-19 outbreak in Massachusetts concluded that vaccinated people who got so-called breakthrough infections carried about the same amount of the coronavirus as those who did not get the shots. Health officials on Friday released details of that research, which was key in …

Delta variant may spread as easily as chickenpox, cause severe infection: Reports
3 years, 5 months ago

Delta variant may spread as easily as chickenpox, cause severe infection: Reports

Deccan Chronicle  

New York: 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, US media reports quoting an internal document from the US health authority said. The document from the Centers for Disease Control and Prevention outlines unpublished data that shows fully vaccinated people might spread …

What is it about the Delta variant that makes it spread so easily?
3 years, 5 months ago

What is it about the Delta variant that makes it spread so easily?

LA Times  

Young people at a Mass celebration at Christ Cathedral in Garden Grove wear face masks to protect themselves and others as the Delta variant spreads. “The virus has been very successful in humans from Day One, but this Delta variant just puts the earlier variants to shame,” said Michael Worobey, a virologist at the University of Arizona. “That means every …

COVID Delta variant as transmissible as chickenpox: US report
3 years, 5 months ago

COVID Delta variant as transmissible as chickenpox: US report

Al Jazeera  

Internal CDC report, quoted by NYT, says Delta variant likely to break through protections afforded by the vaccines. The US report said that the variant was also more likely to break through protections afforded by the vaccines, adding that CDC’s decision to reverse course on masking guidelines for fully vaccinated citizens on Tuesday is based on the document. CDC Director …

CDC document paints more dire picture of threat posed by Delta variant
3 years, 5 months ago

CDC document paints more dire picture of threat posed by Delta variant

LA Times  

Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, adjusts her face mask during a Senate hearing on the federal coronavirus response. A confidential document prepared by the Centers for Disease Control and Prevention about the highly transmissible Delta variant argues that even people who are fully vaccinated against COVID-19 will need to take more aggressive steps …

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