New study sheds light: goats and soda: NPR

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New study sheds light: goats and soda: NPR

The numbers in this illustration show the major mutation sites of the delta variant of the coronavirus, which is likely the most contagious version. Here, the virus spike protein (red) binds to a receptor in a human cell (blue). New research sheds light on what makes this variable transmissible.


Joan Gartner / Science Source


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Joan Gartner / Science Source

The numbers in this illustration show the major mutation sites of the delta variant of the coronavirus, which is likely the most contagious version. Here, the virus spike protein (red) binds to a receptor in a human cell (blue). New research sheds light on what makes this variable transmissible.


Joan Gartner / Science Source

After months of data collection, scientists agree that the delta variant is the most contagious version of the coronavirus worldwide. spread around 225% faster From the original version of the virus, it is currently controlling the virus outbreak in the United States.

New study published Wednesday Online, sheds light on why. The researchers found that the variant grows more rapidly within people’s respiratory tracts and to much higher levels, according to a report by researchers at the Guangdong Provincial Center for Disease Control and Prevention.

On average, people with the delta variant had about 1,000 times more copies of the virus in their respiratory tract than people with the original strain of coronavirus, according to the study.

Additionally, after someone picks up a delta variant, the person is likely to become infectious sooner. On average, it only took about four days for a delta variant to reach detectable levels within a person, compared to six days for the original coronavirus variant.

In the study, scientists analyzed COVID-19 patients involved in the first outbreak of the delta variant in mainland China, which occurred between May 21 and June 18 in Guangzhou, the capital of Guangdong province. Researchers measured virus levels in 62 people involved in that outbreak and compared them to levels of 63 patients infected in 2020 with an early version of the virus.

Their findings suggest that people infected with the delta variant are more likely to spread the virus early in the course of infection.

Scientists stress the importance of quarantining immediately for 14 days after contact with a person diagnosed with COVID-19, as the US Centers for Disease Control and Prevention recommends.

Or even better than a full vaccination. CDC Director Dr. Rochelle Walinsky said Thursday at the White House that preliminary data shows that in some US states, 99.5% of COVID-19 deaths in the past few months have been among unvaccinated people.

“We know that the delta type … is currently increasing in the pockets of the country with low vaccination rates,” she said. “We also know that our authorized vaccines prevent severe disease, hospitalization and death from the delta variant.”

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