1. Raw vegetables Raw vegetables are eaten directly, so preliminary processing requires you to wash properly, because pathogens can cling to raw vegetables, even penetrating inside vegetables. So, you should wash vegetables 3 times properly before eating. When washing vegetables, with lettuce should remove wilted, waterlogged leaves because bacteria can spread. As for cilantro, the leaves with brown or black spots should be thrown away. 2. Mushrooms There are many people who love to eat mushrooms. There are many types of mushrooms, so they are used for hot pot or vegetarian food. But most people do not know the difference between fungi, especially wild mushrooms. The poisonous mushrooms contain harmful substances such as orellanine, gyromitrin, alpha-amanitin. If you eat the poisonous mushrooms or don’t cook them thoroughly, you could die of liver failure. 3. Unripe omelets Eggs can become contaminated with Salmonella by spreading the germs from the hen’s “mother”. For young children, the elderly or people with weak immune systems, they should eat cooked eggs through boiling, fried or steamed processing to destroy dangerous bacteria and avoid poisoning. If you like to eat fried eggs, it is safer to cook them completely. 4. Undercooked meat The most likely to cause poisoning is undercooked meat. These meats may contain Salmonella, Clostridium perfringens and other bacteria. And they are only destroyed when cooked at high temperatures. Specifically, the ideal temperature for a steak or grill is about more than 62 degrees Celsius to ensure that the meat inside is fully cooked. Ground beef and pork need to be cooked at more than 71 degrees Celsius to be safe. 5. Sprouts In fact, a sultry environment is required for seeds to sprout, but this is also a favorite place for bacteria. Prominent was the growth of salmonella, listeria and E. coli. So if you eat raw sprouts in the form of salad because you think it ensures nutrition and helps you lose weight. Either or not thoroughly cooked, it is very susceptible to food poisoning. It is better to cook sprouts before using them to ensure safety for your health.

Last spring, while consumers were concerned about how to clean themselves after defecating, scientists discovered that people infected with the Covid-19 virus shed the virus’s genetic material in their feces. surname. The waste treatment system for more than 100 years is too old In fact, toilet systems play a part in maintaining public health. However, the core technology in the toilet system has existed for more than 100 years, when humanity has not faced the current challenges. On top of that, many parts and equipment in the ground are reaching their lifespan and starting to fail due to lack of investment in maintenance. This year, the American Association of Civil Engineers scored D + for the country’s wastewater treatment infrastructure. Accordingly, there is too much waste around, this creates a potential danger to public health and the environment. The waste treatment system for more than 100 years is too old. Illustration. According to the Wired , evidence of the deteriorating waste disposal system existing around human habitats. While considered a flawed design, combined sewer systems are still prevalent in many older cities. Sewage water overflows when it rains, releasing potential pathogens into the waterways; Waste, nutrients, chemicals and pharmaceuticals get into the sewer system. Degraded septic tanks pollute the soil and groundwater. Wet wipes and other types of waste have tended to increase sharply since the outbreak of a pandemic, causing heavy congestion that keeps wastewater from flowing. Natural disasters caused by climate change overwhelm drainage systems. During the past year, massive floods from Tennessee to Australia left people inundated with polluted wastewater. In August, a series of power outages during a massive heatwave in California caused a wastewater treatment plant to dump nearly 189,270 liters of raw and partially treated wastewater into the mouth of the Oakland River. In February 2021, Texas weather continued to be cold, people could not bathe and heat for many days; a hospital truck dumped water just to flush the toilet. Prisoners endured the filthy days of prisons in Texas. Serious health effects Conventional wastewater treatment systems are not only degraded, but are also in short supply. More than half of the world’s population is not equipped with safe toilets to dispose of waste. According to the statistics of US Water Alliance It is estimated that 2 million Americans do not have complete plumbing, directly affecting health causing skin diseases such as rashes, intestinal diseases such as diarrhea, hookworm … and many difficulties. another towel. Ms. Pamela Rush, an activist from the Alabama countryside, shared her story about daily living next to the raw wastewater dumps, like many other poor people in America, mostly leather. black. These people are sometimes fined and criminally prosecuted for not being able to pay the costs of a septic tank or maintenance. Not being equipped with complete plumbing can directly cause skin diseases such as a rash. Illustration. More tragic, Ms. Pamela also became one of the victims of the Covid-19 pandemic. “The main cause of death was the corona virus, but the underlying causes she suffered were poverty, habitat inequality, climate change, racism and disparity. about health, “said Catherine Coleman Flowers, environmental equity activist. Catherine is also a friend of Ms. Pamela. For people who don’t have their own toilets, closing orders make public toilets harder to find than usual. This problem affects homeless people, people with intestinal disorders and other diseases. In some slums in developing cities, shared toilets are often open, but the order of social exclusion unintentionally makes matters more difficult than ever. Not only is wastewater treatment infrastructure deteriorating or facing many risks, so is the workforce. In the US, this sector is facing a wave of retirement, even seen as the “silver tsunami”. When the pandemic first started, some wastewater treatment industries feared losing old workers that were difficult to replace and important because of illness or worse. They have closed facilities with workers working week-long shifts so that the virus cannot enter. In India, sewer cleaners petitioned the government for simple personal protective equipment so they could keep working. Solution According to the Wired , to solve the problem of waste, the rebuilding of infrastructure is not enough, but it is necessary to apply many new innovations, encouraging the application of new methods. This helps the toilet system work better, ensures safety for human health, is more durable and reasonable. In order to do this, the state and local governments need to have enough funds and new public works policies to create incentives for improvement. Then, in places with stable centralized infrastructure, cities can use both new and established tools to mine wastewater for heat, water, nutrients, chemicals, and metals. valuable, as well as biogas and other fuels. Digital sensors help smarter sewage treatment systems using pipes and reduce spills. The new setup can push used toilet paper out of the wastewater stream before being processed and recycled into cellulose. This substance is a raw material that can be widely used, even used for industrial chemicals. With the right tools, even large chunks of trash that clog drains can turn into biofuel thanks to the greasy layers inside. Besides, there are many new and more radical inventions for the pipeline. Scattered distribution systems for toilet waste and water reuse in buildings or communities are rapidly developing. Businesses, cleaning services by container trucks provide regular cleaning services. A row of public toilets in South Africa. Photo: Alamy Stock Photo. “Urine divert” toilets help separate high-nutrient, low-pathogens from feces and water. They function more like recycling bins than trash cans. These innovations are more relevant in harsh contexts and are better resilient to serious consequences. They minimize the impact on the climate, cause less pollution and produce resources such as clean water, compost, fuel, even insect protein. They can generate revenue streams and provide safe, well-paid, and well-paid jobs that attract young people who are environmentally conscious and work diverse. Many of the above ideas are in beta. To turn these ideas into practice on a larger scale, more investment and supportive policies from the state are needed, attracting people who are willing to overcome difficulties to apply innovative technologies early. toilet system. In addition, there are other innovations such as treatment of the genetic waste corona virus in human feces. Scientists around the world have been analyzing wastewater and providing feedback to public health professionals and policymakers on outbreaks, new trends and the impact of regulations. rules and restrictions. The innovators are also experimenting with new ideas for public toilets, making them more popular with everyone. In Pune, India, the idea of ​​building a reusable bus women’s public toilets, plus a boutique and small coffee shop, helps to reduce the cost of using a toilet. Some cities have implemented or are considering paying a small fee for cafes, restaurants and businesses to provide public toilets. Instead, businesses are advertised for free and are seen as implementing a public service. The Covid-19 pandemic showed a deeper insight into the toilet waste treatment system: This is not only technology but also a human prerogative. According to the Wired Investing in a drainage system not only helps to upgrade old systems and expand the quality of sanitation and safety for everyone, but also avoids further damage caused by disease outbreaks and environmental disasters. Future.

Ancient corona virus illustration, 25,000 years ago. The current COVID-19 pandemic has claimed the lives of more than 3 million people and shows how vulnerable people are to the genetically modified corona virus. However, this threat seems to have occurred since the early days when humans had to fight these dangerous viruses. “There are always viruses that infect humans,” said senior study author David Enard, associate professor of ecology and evolution at the University of Arizona, USA. Viruses are actually one of the main drivers of natural selection in the human genome. That’s because genes that increase the chances of the pathogen’s survival are more likely to be passed on to new generations. ” Using modern tools, researchers can detect traces of these ancient pathogens by precisely identifying how they promote natural selection in today’s human DNA. Accordingly, this information can provide valuable insight to help predict future pandemics. Enard said: “Almost always is when things that happened in the past are more likely to happen in the future.” Using information available in public databases, Enard and his team analyzed the genomes of 2,504 people across 26 different human populations around the world. When corona viruses get inside human cells, they attack the cell’s machinery to replicate. This means that the viral success depends on its interaction with hundreds of different human proteins. Researchers magnified a set of 420 human proteins known to interact with the corona virus, 332 of which interact with SARS-CoV-2, the virus that causes COVID-19. Most of these proteins help viruses multiply inside cells, but some help cells fight viruses. The genes that encode those proteins mutate continuously and randomly, but if the mutation gives the gene an advantage, such as a better resistance to the virus – then the gene has a chance to be passed on. next or selected higher. Indeed, the researchers found that, in people of East Asian descent, certain genes interacting with the corona virus were selected. In other words, over time certain variations show up more often than expected. This set of mutations may have helped the ancestors of the human population in this region become more ancient antiviral by altering the amount of protein produced by the cell. The genetic variations encoding 42 of the 420 proteins they analyzed began to increase in frequency about 25,000 years ago, the researchers found. The spread of beneficial variants continued until about 5,000 years ago. This suggests that the ancient virus continued to threaten these populations for a long time. Viruses cause pressure to adapt “Viruses exert some of the strongest selective pressures on humans to adapt, and corona viruses have probably been around since,” said Joel Wertheim, associate professor at the Faculty of Medicine at the University of California, San Diego. long before man existed. However, it is difficult to say whether the virus that caused this evolution is the corona virus, but it seems to be a plausible theory. David Enard agrees that the ancient pathogen that harmed our ancestors may not have been the corona virus; instead, it is possible that another virus that has happened to interact with human cells in the same way that corona viruses do. Another group of researchers recently discovered that sarbecovirus, a family of the corona virus that includes SARS-CoV-2, first evolved 23,500 years ago, at the same time as variations in the genes that encode the proteins related to the corona virus have appeared for the first time in humans. Findings of the sarbecovirus virus were also published in bioRxiv on February 9 and have yet to be peer reviewed. While these findings are compelling, they do not change our understanding of which populations are more likely to survive SARS-CoV-2 infection. Although, there is no evidence that adaptation of this ancient gene protects modern humans from SARS-CoV-2. Enard and his team now hope to work with virologists to understand how this adaptation helped ancient humans survive exposure to this protozoan strain of the corona virus. The team also hopes that such ancient genomic studies could eventually be used as an “early warning system” for future pandemics. David Enard adds, although we clearly see the impact of this ancient virus on human ancestors, future generations will not be able to see traces of SARS-CoV-2 in the genome. our. Thanks to vaccination, there is no time for the virus to promote evolutionary adaptation.

On March 30, the World Health Organization (WHO) and China released a joint report on the results of investigating the origin of the SARS-CoV-2 virus causing pandemic COVID-19, radio ABC (USA) reported. The report summarizes the results of the survey from January 14 to February 10 by the WHO expert group in China – an effort seen as the first step in the work that could take many years to find the source. COVID-19. Some members of the WHO investigation team (sitting in the car) surveyed at the Wuhan Virus Research Institute on February 3. Photo: REUTERS The report repeated many of the conclusions discussed by the expert group at the end of the mission in China and drew a clearer picture of the origin of the COVID-19 pandemic. Four hypotheses about the source of the SARS-CoV-2 virus to humans ABC has pointed out four hypotheses about the source of SARS-CoV-2 virus infection to humans are mentioned in a report published by WHO and China on March 30. 1. Is the virus transmitted directly from animals to humans? According to the WHO report, the SARS-CoV-2 virus can or is highly likely to have been transmitted directly from animals (most likely from bats) to humans through farming, hunting or close contact. difference between human and animal. 2. Is the virus transmitted to humans through an vector of an vector? According to WHO, there is a very high possibility that the SARS-CoV-2 virus from the original pathogen (bat) has been transmitted through mediators such as weasels, pangolins, rabbits … and humans are infected by exposure to secondary pathogens. this level. 3. Can people get a virus through frozen food products? According to WHO, this could happen. This means that people can become infected when they come into contact with frozen food contaminated with the bio-waste of animals infected with the SARS-CoV-2 virus (without the need to come into contact with the original pathogen). 4. Is there a virus leak from the lab? This so-called “highly political” hypothesis has been repeatedly rejected by experts from China and the WHO. According to the latest WHO report, it is extremely unlikely that the SARS-CoV-2 virus is a product from a certain laboratory in China. Although assessing the SARS-CoV-2 virus leak hypothesis from the laboratory as unlikely, WHO Director-General Tedros noted that the experts have considered all the hypotheses and need further research to bring to make more certain conclusions. Hoa Nam Seafood Market is the “super infectious” nest, not the place where the epidemic begins According to WHO data, the first case of COVID-19 infection has been linked to the Hainan Seafood Market in Wuhan City, Hubei Province (China). WHO experts have taken large-scale samples at the Hoa Nam market – including samples from the environment, food and animals in the market. A total of 718 environmental samples were collected at Hoa Nam market and 14 samples were collected from warehouses related to Hoa Nam market. Some samples from the environment showed traces of the nucleic acid of the SARS-CoV-2 virus and some even showed virus isolation results. However, no trace of SARS-CoV-2 virus was found in market animals. Some members of the WHO investigation team came to investigate at Hoa Nam market in late January. Photo: REUTERS Meanwhile, the genomic sequences of several (human) cases related to the region are identical, leading scientists to speculate that the Hoa Nam market is a “super infectious” nest. Along with some analysis of the distribution of the SARS-CoV-2 virus variants, experts are continuing to examine the possibility that the SARS-CoV-2 virus appeared in the Hoa Nam market due to frozen products. The way to find the origin of COVID-19 is still very long WHO Director-General Tedros Adhanom Ghebreyesus noted that “this report is a very important start but it is not the end point”. “We have yet to find the origin of the virus (SARS-CoV-2) and we must continue to follow the scientific recommendations and find out all possibilities as we are doing,” Tedros said in press conference on 30-3. Although many argue that the WHO March 30 report is nothing new, Dr. Ian Lipkin – Director of the Center for Infections and Immunology at Columbia University (USA) – describes it as a “extreme report. detailed and complete period “. Mr. Lipkin noted that what the scientists are trying to do is “re-enact events from a year and a half without the complete data and biological samples” so it could take years, or even never before. Now, find the exact conclusion. However, Mr. Lipkin reiterated that before the WHO expert group came to China, several routes of infection with the SARS-CoV-2 virus were envisioned and the WHO report provided possible data. prove those hypotheses. Meanwhile, Professor Vincent Racaniello – an expert in microbiology and immunology also at Columbia University – said that scientists were “lucky” to find clues about the origin of the SARS-CoV-2 virus. Mr. Racaniello reiterated that after many years, scientists have yet to find the origin of the Ebola virus.