Hanoi has just entered the beginning of summer, but at traditional markets and online markets, field crabs have become a popular food for many people. Photo: Vietnamese people In addition to whole fresh field crabs sold at markets for 150-180,000 VND/kg, on the online market there are also ready-made ground crabs for sale at half or even 1/3 of the price. fresh crab. Photo: Facebook. Each kg of pre-ground crab includes 1 bag of crushed crab meat and 1 bag of crab bricks, priced from 60,000 – 80,000 VND/kg. Photo: Facebook With such a startling low price, many people suspect that this type of pre-ground frozen crab may be Western crab or imported from Cambodia and Thailand. Photo: Facebook Not only pre-ground copper crab, recently Norwegian brown crab (Norwegian brick crab) is also for sale on the online market for only 290-350,000 VND/kg, half the price of Ca Mau brick crab. Photo: Facebook Norwegian brown crab, which is considered a high-class seafood line in the world, is sold at a cheap price, so housewives buy it and eat it. Photo: Facebook However, according to the owner of a high-end seafood store in Hanoi, the best quality crab must be fresh crab, so most reputable seafood supermarkets do not sell frozen imports. Photo: Facebook Norwegian brick crab is a high-class, world-famous seafood that is sold in large quantities in Vietnam at such a cheap price. Photo: Facebook Last year, on many gateway streets of Ho Chi Minh City, there were many points of sale of Ca Mau crabs on the roadside with only 50,000 VND/3 crabs. Photo: Workers However, in fact, the price of 50,000 VND for 3 crabs that the seller offers is just a way for them to attract passersby. When asking to buy, the seller pointed to the tiny crabs. Photo: Plo However, in fact, the price of 50,000 VND for 3 crabs that the seller offers is just a way for them to attract passersby. When asking to buy, the seller pointed to the tiny crabs. Photo: Plo Video: Going to the market to buy field crabs in the West. Source: VTV24

Ethereum has skyrocketed in recent times. (Source: CNBC) Price hits all-time high According to Coin Metrics, Ethereum (also known as Ether) reached an all-time high of $4,196.3 at 12:15 p.m. on May 10. The value of Ether is up nearly 7% in the past 24 hours and is currently at $4,141.99. The total market capitalization of this coin is $476.3 billion, almost half the market capitalization of the world’s largest digital currency – Bitcoin ($1.1 trillion). With the new milestone just set, the price of Ether has increased 5 times from the price of $ 800 at the beginning of 2021. Compared to the same period last year, the price of Ethereum has increased about 20 times in just 1 year. . Ether was founded in 2013 by Russian-Canadian programmer Vitalik Buterin and several other crypto entrepreneurs. Similar to Bitcoin, Ether operates on the Blockchain technology platform. The biggest difference between Ether and Bitcoin is the intended use and core technology. Ether was created with the goal of becoming a platform for smart contract development. Ether serves as a means of paying for the network’s operating costs. Meanwhile, Bitcoin was born with the sole purpose of becoming a means of payment and a store of value. For programmer Buterin, Bitcoin is too limited in functionality. In an interview with Business Insider , founder Ether compared Bitcoin to a pocket computer that “does one thing well,” while Ether is like a smartphone with many apps. Ethereum is not perfect yet However, according to the page CNBC , Ether is not perfect yet. In 2017, the popularity of the game CryptoKitties caused Ether’s network to become severely congested, slowing transactions and causing game developers to raise fees. Scalability is one of the biggest problems with the Ether network today. This cryptocurrency currently works using a proof-of-work protocol (a mechanism that prevents double-spending), similar to Bitcoin. This means that cryptocurrency miners with purpose-built computers must compete to solve complex mathematical puzzles to validate transactions and get the miners’ networks to “mine”. Electrons must consume huge amounts of energy. But Ether is currently “running” an ambitious upgrade called Ethereum 2.0. Specifically, the cryptocurrency moves to a proof-of-stake model and relies on investors holding Ether to process new transactions. Cryptocurrency investors say the upgrade will help the Ether network run at scale, process more transactions at faster speeds, and support applications with millions of users. This can also lead to short-term price increases. However, some experts are still skeptical and refuse to trade digital currencies like Bitcoin and Ether. The latest volatility of the world’s top two cryptocurrencies reminded them of the 2017 crypto bubble, during which Bitcoin surged to a peak of $20,000. But a year later, it “sloped” down to $3,122. Some cautious investors say that the cryptocurrency is in a bubble waiting to burst. What do experts think about Ethereum and Bitcoin? Ed Egilinsky, CEO – Head of Alternative Investments at Direxion said: “Ethereum’s blockchain technology has more uses and functionality than Bitcoin, making it a potentially lucrative game in the long run. Also, at the present time, the price difference between Bitcoin and Ethereum could make Ethereum an ‘affordable’ investment for investors.” “Ether is a blockchain platform that acts like the Apple and Android app stores,” said Pat LaVecchia, CEO of trading platform Oasis Pro Markets. Meanwhile, Bitcoin is a commodity like gold, or a store of value. Unlike Bitcoin, where many properties (such as supply) have been fixed since its inception, the Ethereum platform is still evolving with new updates that promise to improve the system. It’s even entirely possible that regulations change and cause the supply to drop, which will cause the price of Ethereum to continue to rise.” (according to CNBC, Business Insider)

When the Covid-19 pandemic first broke out, the vaccine was still just a ray of light at the end of the tunnel. The term “community immunity” is to denote the end of the epidemic. Community immunity means that when enough Americans are protected from the virus, the pathogen is eliminated, New York Times said. Today, more than half of all adults in the United States receive at least one dose of the vaccine. But vaccination rates are declining, and there is consensus among scientists and public health experts that public immunity cannot be achieved, at least in the near future, and perhaps never. hours. They came to the conclusion that the virus could become a controllable threat that will continue to spread in the US for many years to come. It still causes flare-ups with hospitalizations and deaths, but on a smaller scale. Depends on the strain’s ability of the virus How much smaller future outbreaks will be and the number of cases and deaths is uncertain. It depends on how many countries in the world are vaccinated, and more importantly, how the virus evolved. Viruses are evolving too quickly. The new strains spread very quickly. Meanwhile, the immunization speed is too slow. That makes the expectation of community immunity even more distant. The United States is one of the countries with the highest rates of Covid-19 vaccination in the world. Photo: New York Times. Experts believe that vaccinating high-risk groups will be crucial to limit the size of new outbreaks. “The virus is unlikely to go away, but we are doing all we can to see if it is likely to cause only mild infections,” said Rustom Antia, an evolutionary biologist at Emory University in Atlanta, USA. said. To date, experts still cannot be sure what percentage of the population has anti-Covid-19 antibodies. Even for people with antibodies, experts cannot be sure of their immunity to new strains. Dr Anthony S. Fauci, the leading adviser to the Joe Biden administration on Covid-19, admits the change in thinking among experts. “We stopped using the term community immunity. I said, vaccinate a sufficient number of people, the level of infection will drop,” he said. Why is community immunity difficult to achieve When the corona virus begins to spread globally in early 2020, many experts believe that public immunity is the key to escaping the pandemic. That is when enough people have acquired immunity, including through natural infection or vaccination, when the virus will run out of people to infect and go away on its own. 30% of the US population is reluctant to get the Covid-19 vaccine. Photo: New York Times. The concept of public immunity has become a tacit target in many countries, including the United States. Initially, the threshold for achieving public immunity is 60-70% of the infected population. Most experts, including Dr. Fauci, believe that the United States can achieve public immunity before vaccines become available. But when the vaccine started to be distributed, this threshold estimate began to increase. Initial estimates were made based on the spread of the original virus. Variant B.117 – first discovered in the UK – was up to 60% more infectious than the original strain. Experts estimate the new threshold to 80%. If new strains continue to grow and spread, or if scientists find vaccinated people can still transmit the virus, the threshold calculation may need to be revised again. In addition, recent polls show that about 30% of the US population is afraid to be vaccinated. “Theoretically we could get an immunization rate of 90% of the population, but in reality it’s very difficult,” said Marc Lipsitch, an epidemiologist at Harvard TH Chan School of Public Health. While vaccination resistance is the main reason why the United States cannot achieve public immunity, it is not the main reason. Community immunity is often seen as a national target, but it’s a vague concept in a country as large as the United States. On a global scale, this possibility becomes even more distant. Immunization is still the key Dr. David M. Morens, senior advisor to Dr. Fauci, said community immunity can vary with population size, human behavior and many other factors. A small outbreak in a low vaccination area could spill over and hit an area where the majority of the population was vaccinated. Immunization remains the key to dealing with the epidemic. Photo: New York Times. At the same time, the connections between the countries of the world, especially when the travel restriction is reduced, underscores the urgency of protection, not only for Americans but for other countries as well. Any new strain of Covid-19 that arises in the world will eventually come to America. At that time, the vaccination rate is the decisive factor for the protection level of the community with the new strains. Many parts of the world lag far behind the United States in immunization. Less than 2% of Indians are vaccinated and less than 1% in South Africa, according to data New York Times . “We will not achieve public immunity as nations, states, even cities, until we have immunity in all populations,” Lauren Ancel Says Meyers, director of the Covid Modeling Organization, University of Texas. By focusing on vaccinating the most at-risk groups, the US has reduced its mortality rate compared to before. If vaccination rates continue to increase over time, the corona virus may become seasonal, similar to the flu. The biggest challenge facing health professionals is convincing people to vaccinate. Many Americans remain skeptical of the vaccine’s effectiveness. Another group lacked access to vaccines, such as homeless people, migrant workers, or certain communities of color. That makes the goal of achieving community immunity even more difficult. The mentality of the vast majority of people is that they want to see someone else embrace something, before they’re willing to try it. Emphasizing the benefits of vaccination may become more effective than the fictional idea of ​​herd immunity. “That will resonate with people more than the elusive concept that experts are still trying to come up with,” said Mary Politi, a specialist in health and health communication, University of Washington. Experts also recommend increasing vaccination rates for children, even babies. Because over time, if there aren’t enough people vaccinated, new strains can develop and disrupt the vaccine’s ability to protect itself.

Wuhan Institute of Virology – which is hypothesized to be the source of Covid-19 infection. (Source: Reuters) According to a report published on 30/3, a joint investigation by the World Health Organization (WHO) and China conducted on the origin of the SARS-CoV-2 virus causing acute respiratory infections (Covid- 19) concluded that it was “extremely unlikely” that the virus had escaped a laboratory in the central Chinese city of Wuhan. The origin of the SARS-CoV-2 virus is still questionable The report concludes that the virus is most likely transmitted to humans from an unknown animal, while contradicting the theory made by former US President Donald Trump that the Chinese lab may be the birthplace. virus. While China praised the report, 14 countries including Japan, the US, Australia, the UK, Canada and South Korea have expressed “common concern” about the study and claim that the investigation has was “delayed a long time and lacked access to complete data and originals”, and called for “a fast, efficient, transparent, science-based and independent process” to produce international assessments in case of future outbreaks. WHO Director-General Tedros Ghebreyesus said: “All theories are still being discussed. Although the team has concluded that the laboratory leak is the least likely hypothesis, it requires requiring further investigation, it is likely that additional missions including many experts will have to be deployed. According to WHO Director-General, the inspection team should have access to full data including biological samples from at least September 2019. He asserted that this report is a very important beginning and not the end. “We have not found the origin of the virus yet, and must continue to follow the science without missing any details”, Mr. Tedros Ghebreyesus stressed. While the majority of the report focuses on molecular studies, viral evolution, and potentially host animals, the report on potential laboratory leaks does. Very sketchy presentation. Although the host origin of SARS-CoV-2 is widely recognized, some scientists still maintain the view that this virus may have been collected and stored in the Wuhan Institute of Virology, despite the fact that Chinese scientists have rejected this claim. Viruses similar to SARS-CoV-2 were reported to have been found in bats and pangolins, but an intermediate host for transmission to humans has yet to be identified. This report is based on a study conducted by an international team of experts that mink and cats, which are known to be susceptible animals, may be one of the potential hosts. Need more information The Trump administration once hypothesized that the SARS-CoV-2 virus could have come from the Wuhan Institute of Virology and claimed that some researchers there had already had Covid-19-like symptoms in the fall. year 2019. However, the team said they found no evidence to support this claim during a January-February 2021 field trip to Wuhan City to investigate the source of the virus. The Chinese authorities have stated that the SARS-CoV-2 virus could have been introduced into the country through imported frozen food. Such transmission is possible but cannot be verified as imported frozen products are not considered a potential path of infection during early spread, the team report said. viruses and there were no tests for them at the time. Matthew Kavanagh, a researcher at Georgetown University, said the report said more in-depth information about the origin of the virus, but more information is needed. “Obviously, the Chinese government does not provide all the necessary data, and until they do this, the conclusions will be very difficult,” said researcher Matthew Kavanagh. The reporting team included experts from many different countries and officials from WHO, World Veterinary Organization and the Food and Agriculture Organization of the United Nations. The team, after being quarantined for two weeks in Wuhan in mid-January 2021, inspected the research institute and other places believed to be related to the virus such as seafood markets. They also had discussions with Chinese experts. Representatives of the WHO and China expert group at a joint press conference in Wuhan on February 9. (Source: Reuters) “Opposite” views Jesse Bloom, an expert on evolutionary biology at the Fred Hutchinson Cancer Research Center in Seattle (USA), said he does not believe that a lab leak is unlikely. The expert agrees that the virus naturally evolved to spread to humans, but he did not see any explanation in the report disproving the possibility that the SARS-CoV-2 virus could catch. source from a laboratory. Meanwhile, Mr. Peter Daszak, a member of the WHO expert group, a British ecologist in infectious diseases, and the executive director of the Ecological Health Coalition – a disease prevention organization in New York. , has voiced opposition to the flow of comments criticizing the research results and the degree of cooperation of China. Mr. Peter Daszak said that the lab leak hypothesis “has political purposes from the very beginning”. Dr. Daszak added that the WHO team of experts was not prohibited from participating in interviews with scientists who were on the ground during the early stages of the pandemic. Mr. Daszak himself has also been accused of a conflict of interest due to collaborating research on the virus with the Wuhan Institute of Virology, which he thinks an infectious disease ecologist should do. “We were in the right place because we knew there was a risk of disease outbreaks. We were working there with this exact team and it happened,” said Dr Daszak. A group of scientists not affiliated with WHO is calling for a new investigation into the origins of the Covid-19 pandemic. They argue that such an investigation needs to consider the possibility of the virus spreading from a laboratory in Wuhan or infecting people inside it. (synthetic)