Day: April 11, 2022

The World Health Organization said on Monday it is tracking a few dozen cases of two new sub-variants of the highly transmissible omicron strain of the coronavirus to assess whether they are more infectious or dangerous.

It has added BA.4 and BA.5, sister variants of the original BA.1 omicron variant, to its list for monitoring. It is already tracking BA.1 and BA.2 — now globally dominant — as well as BA.1.1 and BA.3.

The WHO said it had begun tracking them because of their “additional mutations that need to be further studied to understand their impact on immune escape potential.”

Viruses mutate all the time but only some mutations affect their ability to spread or evade prior immunity from vaccination or infection, or the severity of disease they cause.

For instance, BA.2 now represents nearly 94% of all sequenced cases and is more transmissible than its siblings, but the evidence so far suggests it is no more likely to cause severe disease.

Only a few dozen cases of BA.4 and BA.5 have been reported to the global GISAID database, according to WHO.

The UK’s Health Security Agency said last week BA.4 had been found in South Africa, Denmark, Botswana, Scotland and England from Jan. 10 to March 30.

All the BA.5 cases were in South Africa as of last week, but on Monday Botswana’s health ministry said it had identified four cases of BA.4 and BA.5, all among people aged 30 to 50 who were fully vaccinated and experiencing mild symptoms.
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Twitter Inc’s biggest shareholder, Elon Musk, has decided not to join its board, Chief Executive Parag Agrawal said late on Sunday. 

Musk, who calls himself a free-speech absolutist and has been critical of Twitter, disclosed a 9.1% stake on April 4 and said he plans to bring about significant improvements at the social media platform. 

His appointment to the board was to become effective on Saturday and would have prevented him from being a beneficial owner of more than 14.9% of common stock. 

But “Elon shared that same morning that he will no longer be joining the board,” Agrawal said in a note on Twitter. “I believe this is for the best. We have and will always value input from our shareholders whether they are on our Board or not. Elon is our biggest shareholder and we will remain open to his input,” Agrawal said. 

Musk limited his response to a face with hand over mouth emoticon on Twitter. Tesla did not immediately respond to an email sent to the company seeking a comment from Musk. 

News of Musk taking a board seat had some Twitter employees panicking over the future of the social media firm’s ability to moderate content, company insiders told Reuters. 

Before taking a stake, Musk ran a Twitter poll asking users if they believed Twitter adheres to the principle of free speech. 

A day after becoming the largest shareholder, he launched another poll asking users if they want an edit button, a long-awaited feature on which the social media platform has been working. 

The Tesla boss also asked users in a poll if Twitter’s headquarters should be converted into a homeless shelter, a plan backed by Amazon.com Inc’s founder Jeff Bezos. 

On Saturday, he suggested changes to Twitter Blue premium subscription service, including slashing its price, banning advertising and giving an option to pay in the cryptocurrency dogecoin. 

Twitter shares, which soared 27% on April 4 after Musk disclosed his stake, has lost 7.5% since then to Friday’s close. 

“There will be distractions ahead, but our goals and priorities remain unchanged,” Agrawal said in his Sunday note. 

“Let’s tune out the noise, and stay focused on the work and what we’re building.” 
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