"Joined forces! The "Delta + Omicron" mixed strain is here! Eight people are diagnose

According to Worldometer real-time statistics, as of 6:30 on January 10, 2022, Beijing time, a total of 307,685,974 new coronary pneumonia cases have been confirmed worldwide, and a total of 5,505,491 deaths. Globally, there were 1,971,706 new confirmed cases and 3,832 new deaths in a single day.

When the global fight against the epidemic is in full swing, a newly discovered strain of the new coronavirus has made the global epidemic situation even more tense.

Delta Chron is here
Recently, researchers from the University of Cyprus suspected to have discovered a recombinant new coronavirus strain of Delta and Omicron in the local area. Therefore, the strain was named "Deltacron" by the researchers.

After sequencing 1,377 samples, a research team led by the President of the Republic of Cyprus' New Coronary Pneumonia Scientific Advisory Committee and others found that 25 people were infected with this new strain. Although its genetic sequence is close to the Delta strain, 10 Unique variation of the Omicron strain. Meanwhile, as many as 14 of the 25 infected are hospitalized.

"There is currently a co-infection of the Omicron and Delta strains, and we found a variant that recombines the two," Cos-Regis said. The variant is more common in hospitalized patients. The team has uploaded the strain's genome to the GISAID international database and will continue to see if this variant is more pathogenic or infectious, or if it will become prevalent.

In addition to widespread concern, the discovery of the strain has also been controversial. Thomas Peacock, a postdoctoral researcher in infectious diseases at Imperial College London, said on Twitter that there are some indications that the so-called "Delta Chron" may be the result of contamination of genetic sequencing.

Research shows that recombination is very common in coronaviruses and has played an important role in the evolution of the new coronavirus. In July 2020, researchers from Duke University, Los Alamos National Laboratory and other institutions published in the journal "Nature" that the new coronavirus is likely to acquire the ability to infect the human body through recombination, and the recombination has greatly accelerated the new variant of the new coronavirus. appearance.

Omikron was found in Tianjin, China

Turning attention to the country, from 0-24:00 on January 9, 2022, 21 new confirmed cases of local new coronary pneumonia were added in Tianjin (all in Jinnan District).

The deputy director of the Tianjin Center for Disease Control and Prevention said that most of the infected people were students and parents. From the perspective of the relationship between these cases and the chain of transmission, the virus has spread for at least three generations (people). Although the outbreak occurred in the early morning of the 8th It was only discovered that it is possible that the spread in this community has been going on for some time.

Among them, 2 local cases of new coronavirus whole genome sequencing were analyzed and compared, and confirmed by the Chinese Center for Disease Control and Prevention, both belong to the VOC/Omicron variant strain (BA.1 evolutionary branch), belong to the same transmission chain, and have been found in Tianjin The sequences of the imported cases of Omicron variant strains cannot be confirmed as the same transmission chain.

Due to the concealment of Omicron, the whole genome sequencing of the virus in the laboratory of the Henan Provincial Center for Disease Control and Prevention on January 9 showed that the two local cases were infected with the BA.1 branch of the Omicron variant. After analysis and comparison , which belongs to the same transmission chain as the existing local epidemic in Jinnan District, Tianjin.

Combined with the results of epidemiological investigation and gene sequencing, the source of infection in Anyang City was basically identified as a college student who returned to Tangyin County, Anyang City from Jinnan District, Tianjin City on December 28, 2021.

Because Tianjin is close to Beijing, on the evening of January 9, the Tianjin Epidemic Prevention and Control Headquarters issued a notice to comprehensively strengthen the management of departures from Tianjin and strictly implement the management of departures from Tianjin. From January 10th to January 23rd, the trains from Tianjin, Tianjin West, Tianjin South, Binhai, Tanggu and other train stations in Tianjin to Beijing have turned gray, and tickets cannot be purchased.

8 cases per second in the U.S.

According to an analysis of data from Johns Hopkins University in the United States, as the Omicron strain accelerates in the United States, the United States now has an average of 700,000 new confirmed cases per day.

Eight Americans now test positive for Covid-19 every second as confirmed cases surge. In the past five days, the daily increase in confirmed cases in the United States has set a record high during the epidemic.

White House chief medical adviser Fauci said bluntly that he would not be surprised even if the number of new confirmed cases in the United States exceeds 1 million in a single day.

In this context, the United States is currently facing a shortage of new crown testing kits. The kits in American pharmacies are basically sold out, and the 2-dose rapid screening kits for the new crown have been hyped, and the price has risen as high as 188%-471%.

France continues to step up virus testing

According to official French data, France added 296,097 confirmed cases in a single day on the 9th, bringing the total number of confirmed cases to 12,111,218. The incidence of the new crown in France is now 2,528 infections per 100,000 inhabitants, and the average number of new confirmed cases in France has risen to 230,000 in a single day; the current positive rate of the new crown virus test is about 19.4%.

France is currently testing almost 10 million people a week, but with longer queues, large-scale screening may require more funding and more complex organizational work.

But in the face of the severe epidemic situation, French government spokesman Attar said that it will continue to strengthen new crown virus testing. He pointed out that the new crown virus test is an important tool to deal with the epidemic. Although the test means a large budget, if the test is not carried out, the epidemic will spread further, which may lead to the implementation of relevant control measures again.

Australia's new crown infection number exceeds one million

The Omicron strain swept across most of Australia. New South Wales and Victoria reported 55,000 new cases on the 10th. The number of new crown cases nationwide reached 1.03 million for the first time since the outbreak. Other states will continue to report new cases. increase the number of cases.

More than half of them were new cases last week. The rapid spread of the virus has pushed up hospital admissions in Australian hospitals. It is reported that in the early days of the new crown epidemic, Australia implemented strict border control and blockade policies to control the number of cases. When the new crown vaccination rate increased, the country began to implement a "coexist with the virus" strategy.

Today, rising hospitalizations have forced multiple states to step up containment measures, with rising sick numbers and quarantine regulations putting enormous pressure on local businesses.

The government's underestimation of the enemy, the contempt of the people, and the cunning of the new coronavirus strain have led to the out-of-control epidemic step by step. However, timely monitoring of the 2019-nCoV genome for evidence of recombination is still important, both to gain insight into the virus and to provide early warning of the emergence of "super strain" recombination.