قالب وردپرس درنا توس
Home / Health / White House coronavirus: Sequencing of the gene tracing its origin

White House coronavirus: Sequencing of the gene tracing its origin



The scientists sequenced the genome of a coronavirus strain capable of infecting President Trump and dozens of his advisers and others he came into contact with.

It comes after the White House considers President Trump’s source of infection ‘unknowable’ and rejects the Center’s request for Disease Control and Prevention (CDC) to assist in tracing a related link. outbreak.

Two New York Times journalists who had been near Trump and later tested positive for COVID-19 suggested that they were most likely infected with the White House outbreak.

And they were less convinced that the source of the virus they had caught was untraceable, and enlisted the help of geneticists at the Fred Hutchinson Cancer Center to try to figure out its lineage. the virus they caught, according to Times.

The strains discovered in the two reporters ̵

1; who said they had not been in contact with each other during the amount of time they might become infected – were very similar and unique to Americans, according to a previous print of The study was posted on medRxiv, but has yet to be reviewed.

After President Trump and dozens of people with ties to the White House tested positive for coronavirus, administration officials said the source of the virus was ‘unknown’ – but a new study has uncovered virus strains are almost identical in two White House journalists – including one who reported a ‘super-player’ event held for Amy Coney Barrett (pictured) – another hint (file)

Study lead author Dr Trevor Bedford told The Times: “Mutations possessed by these viruses are quite rare in the United States.

‘I strongly believe these viruses come from the same outbreak or a cluster based on their genome.’

And if the sequencing sequence of the strains that infected the two journalists connecting their cases, likely do the same for samples taken from White House staff and those in contact with them could Help scientists figure out how many infections were the result of an outbreak there and possibly even from where the virus was introduced.

It can be said that journalists who have been infected with a virus that has characteristics of two parent strains, so to speak.

In part, the genetic material of the virus strains matches the most common strain of the virus in the United States, a dominant form thought to be more infectious than other strains.

That tension can come from anywhere.

But the sequencing revealed mutations that belong to a different family of the virus.

The cuttings have been found in the US, Canada and New Zealand.

‘We found that WH1 and WH2’ – the names they give to virus samples from each journalist – ‘were derived from viruses sampled from the United States (Connecticut, Florida, New York, Texas, Washington), Canada and New Zealand in March. and April 2020, ‘wrote the study authors.

They noted that the journalists’ virus samples had six other mutations, and assessed that the strain the two people encountered had a ‘sister’ strain found in Virginia in August, likely splitting from one. common ancestors in May.

Viruses mutated continuously – many changing much faster than SARS-CoV-2, but still evolving hundreds, if not thousands, of unique strains – so the proportion of each journalist picked one The unique variant of the coronavirus from different sources is low.

However, Dr. Bradford told The Times that it is possible the tension is spreading in the Washington, DC area where journalists may have chosen it separately.

However, the results of his research on the two journalists suggest that there may still be a lot to be learned about the coronavirus strain associated with the White House outbreak when the White House states it is not known.

According to the study, journalists tested positive for coronavirus after attending ‘after attending the White House COVID-19 outbreak related event (s)’.

According to the Times, one of the journalists believed to be on Air Force One along with the president, who arrived within 6 feet or less of him without a mask, while the other was covering the event held to pay tribute to Judge Amy Coney Barrett, which Dr. Anthony Fauci has called the ‘superpsreader event.’

Each person wears a mask, although not everyone around them wears it.

‘Given that the individuals in question did not have any direct contact with each other and both were certified for exposure at events related to the White House COVID-19 outbreak, we believe The general epidemiological connection through the White House COVID-19 outbreak is most prevalent. Study authors have written complicated explanations of the genetic similarities of these infections.

‘This means that the WH lineage identified here is also the cause of other infections in the White House cohort.’

And that implication can be proved – or disproved – by sequencing the genomes of virus samples taken from others infected during the White House outbreak.


Source link