Discover the program of diseases and airport control centers Covid-19 The NB.1.8.1 alternative, which was linked to a significant increase in the virus in China.
The cases associated with the NB.1.8.1 variable were reported in the arrival of international travelers to the airports in California, Washington, Virginia and the New York City area, according to the records downloaded by the airport test partner at the Ginkgo Bioworks.
Details about the results of the sequence, which Deployed In recent weeks on Gisaid, or the Global Initiative to share all influenza data, virus database, cases that stem from travelers from a number of countries, including Japan, South Korea, France, Thailand, the Netherlands, Spain, Vietnam, China and Taiwan. Travelers were tested from April 22 to May 12, as the records appear.
A spokesman for the Disease Control Center immediately did not respond to the CBS News for comment.
NB.1.8.1 cases have now been reported by the health authorities in other states, including Ohio and Rose Island and Hawaii, separate from the airport cases. In California and Washington, the first cases date back to late March and early April.
It was experts Watch closely The alternative, which is now dominant in China and is high in parts of Asia. The Hong Kong authorities say that the Covid-19 rates in the city have risen to the worst levels they witnessed in at least a year, after a “significant increase” in the reported emergency room visits and defended Covid-19.
While the authorities in Hong Kong He says There is no evidence that the alternative, which is a descendant of the XDV rates of the virus, is more severe, as they began to urge residents to hide in public transportation or crowded places with climbing cases.
The health authorities in Taiwan have I also mentioned High emergency room visits, severe cases and deaths. Local health authorities say they store vaccines and antiviral treatments in response to the wave of the epidemic.
preliminary Data From researchers in China indicates that the NB.1.8.1 alternative is not better in evading the immune system compared to other strains of height, but has a greater ability to link to human cells, indicating that it can be more transmission.
“A more predictable pattern”
The strain appeared several times during Thursday interview Among the external vaccine consultants in the Food and Drug Administration, as they wrestled with whether they are recommended to update Covid-19 vaccines for the coming fall and winter season.
Vaccine from Last season The alternative descendant targeted JN.1 called KP.2. Early data submitted to the committee by PFIZER and Moderna suggested the transformation into a different descendant of JN.1, which was dominant in recent months, which is called LP.8.1, can promote protection against NB.1.8.1 as well.
“The LP.8.1 vaccine has the highest tail against the LP.8.1, which is dominant in the United States and many other regions and leads to different variables currently circulating, including NB.1.8.1, which is the dominant JN.1 program in many Asian countries,” Darin Edwards, Lead of Moderna Covid-19.
The committee unanimously supported the recommendation that next season vaccines should target a kind of JN.1 variable, but it was divided into details. Some preferred to allow vaccine makers to adhere to last season vaccines, while others called for updating to target the LP.8.1 descendants of the JN.1 by Pfizer and Moderna.
“Although one cannot predict development, and you do not know how this will continue to diversify, the overwhelming possibilities are that what will happen and prevail in the next few months, the next six months will come in the next year from something circulating now. It will not come from something that does not exist anymore.”
Currently, CDC and FDA officials told the committee that only one breed – a variable called XFC – was growing dramatically in the United States, but they warned that the development of the virus was not expected, even with the country’s stability in a relatively predictable pattern of two gratitude per year: once in the summer.
Last season, only an evolutionary “erosion” in the virus witnessed, unlike the type of comprehensive replacement that is driven by severe strains in some previous years. While Covid-19 trends rose during the winter, it remained much lower than the previous summits.
“Throughout this winter, we haven’t seen this alternative to the pressure we have in the past two years. But I do not say that the virus will not turn again in the near future,” said Natalie Thorneberg of the Disease Control Center. Thornburg is the Acting Laboratory Branch in the CDC Corona viruses and other respiratory viruses.
Covid-19 rates now declined to low levels in the country, and have been measured by Emergency room visits and Drain water test.
“I think after five years so far, we see very distinctive patterns [are] Thorneberg, noting that a “seasonal analysis” said that the agency is working on this virus.
