U.S. authorities encourage new Covid-19 shares to settle abroad

The· New stock First detected in the United Kingdom in September and identified last week. The European Center for Disease Control and Prevention said on Sunday that several cases of new strains were reported in Denmark, the Netherlands and possibly Belgium. Similar mutations are occurring in South Africa, according to scientists.

In a CNN show, health officials aren’t sure if a new species is already in the United States, but they’re watching carefully, Monsef Slawi, chief science adviser for Operation Warp Speed, the U.S. government’s coronavirus response program. ing. It.

He said the virus mutates frequently and RNA viruses such as coronavirus are particularly susceptible to change. However, because proteins do not mutate very often, mutations are unlikely to affect the effectiveness of the vaccine.

“Until now, no single mutant was resistant to the vaccine,” Dr. Slawi said.

General Jerome Adams, a US surgeon, said on Sunday that mutations do not mean the virus is more dangerous.

“I don’t even know if it’s really more contagious, or if it was the strain involved in the Superspreading event,” said Dr. Adams. He said in CBS News’ Face the Nation that there were no signs of affecting people’s efforts to vaccinate.

In some countries, including the Netherlands, Belgium and Italy Competing to ban travel From the UK after announcing a new shutdown on Saturday.U.S. top executives overseeing coronavirus testing said they had not foreseen a swift U.S. ban on travel to the United Kingdom.

“I don’t really believe I need to do that yet,” Admiral Brett Guilloyle said in ABC News “this week.” “We have never seen a single [virus] The mutation will still cause it to evade the vaccine. “

The US State Department encourages travelers to reconsider their visit to the United Kingdom, but the Centers for Disease Control and Prevention does not recommend a visit to the United Kingdom.

New York Governor Andrew Cuomo called a reporter on Sunday accusing U.S. health officials of not taking a strong stance on traveling in the United Kingdom, and the U.S. would consider banning flights. He said at least travelers should be required to be tested for viruses. He called it a spring repeat in which flights from China were suspended before flights from Europe.

“Others are banning people from the UK. Six flights a day arrive from the UK and they are doing nothing,” said Democrat Kuomo. “Today, the variant is flying to JFK. How many times in life do you have to make the same mistake?”

The governor said the possibility that the new virus was already here “hunted me down last night.”

White House Chief of Staff

Joe Biden

His team said they would be briefed on tensions earlier in the week. Biden’s public health adviser and surgeon president, Vivek Mercy, told NBC’s “Meet the Press” that the strain “doesn’t change our behavior from a preventive perspective” and wears a mask. He added that he kept a physical distance and was washing his hands. The hand is “still a pillar to prevent Covid infection.”

The virus constantly mutates as it replicates and spreads. Many variations do not cause functional changes, but one or a series of changes can affect the infectivity and severity of the virus.

According to scientists, it is difficult to distinguish whether a particular variant simply becomes more common in some situations or functional, making it more toxic.

“If it’s just a random mutation that’s becoming more common, I’ll rely on the epidemiological situation,” said Trevor, an associate professor of vaccines and infectious diseases at the Fred Hutchinson Cancer Research Center in Seattle. Bedford said.

However, the new strain has some changes in the spike protein that can affect its function, so “I’m worried that something is really happening,” he said in an open source project. Dr. Bedford, a co-developer of Nextstrain, said. It analyzes and tracks the genome of pathogens, including the new coronavirus.

Currently, there is no evidence that these changes may diminish the effects of the Covid-19 vaccine being deployed.

Recently approved vaccine

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Pfizer Co., Ltd.

For example, it induces a strong immune response based on the entire gene sequence of the spike protein. Like the N501Y variant, small adjustments in its code are unlikely to alter vaccine performance, said New York Genome Center faculty member Neville Sanjana.

“Sure, we need to be careful,” said Dr. Sanjana. “But I don’t think there’s any evidence to suggest that you need to worry about getting out of the vaccine.”

—Brianna Abbott contributed to this article.

Write to Ken Thomas [email protected] And Elizabeth Findel [email protected]