The study found that bacteria can spread thousands of kilometers through the "air bridge" March 29, 2019 Source: Sina Technology Sina Technology News Beijing time on March 28th news, according to foreign media reports, the traditional view that the migration of bacteria is achieved by human and animal carriers, and a new study said that this view may not be complete. The study found that some microbes can spread thousands of kilometers in the air. By DNA sequencing of bacteria from different hot springs around the world, scientists found that they have the same DNA sequence and thus proposed the "air bridge" hypothesis. Researcher Konstantin Severinov, lead researcher at the Welkmann Institute for Microbiology, Rutgers University, USA, said: "Our research shows that there must be a global mechanism for bacterial exchange in different regions that are far apart." The researchers analyzed a biomarker called bacterial "memory" that shows how bacteria interact with the virus. According to the researchers, bacteria that infect phage viruses can pass "memory" to a descendant through a specific DNA fragment called a CRISPR Array. By studying the sequence of these "memories," researchers can accurately track how bacteria interact with nearby viruses to obtain an identifiable biomarker. Researchers originally thought that geographically separated bacterial populations might contain distinct "memories," but the results of the tests showed that many bacteria shared the same "history." To rule out the effects of birds and other animals, the bacteria they studied were all from hot springs with high water temperatures. “Because the bacteria we studied live in high-temperature waters in remote areas, the water temperature is about 71.1 degrees Celsius, so it is hard to imagine them being spread by animals, birds or humans,†Severinov said in a statement. “They must be through the air. Propagation, and the scope of this migration must be very broad, so that bacteria in isolated areas have common characteristics." Samples of the Thermus population analyzed in the study were collected from a number of locations, including the gravel of Mount Vesuvius in Italy and the hot springs of Mount Etna; the Eltatio region in northern Chile and the Termas del Flaco region in southern Chile. Hot springs; and fountains at the Uzon crater on the Kamchatka Peninsula in Russia. The researchers say these results may change our understanding of how bacteria and diseases spread and affect some important epidemiological studies, such as those related to antibiotic-resistant bacteria. The researchers also called for more resources to use the drone or research balloon to collect bacteria from different parts of the atmosphere and verify the "air bridge" hypothesis. The results of the study were published in the March 25 issue of Philosophical Transactions of the Royal Society B: Biological Sciences. What is antibiotic resistance? In recent decades, GPs and hospital staff around the world have used antibiotics on a large scale, causing once harmless bacteria to become super bacteria. The World Health Organization warned that if no measures are taken to deal with this crisis, the world will move toward the era of "post-antibiotics", and common bacterial infections such as chlamydial infection will become the killers of people's lives. When the dose of antibiotics used is incorrect, or when it is used unnecessarily, the bacteria will develop resistance. Dame Sally Davies, chief medical officer of the UK Ministry of Health, said in 2016 that the threat of antibiotic resistance is as serious as terrorism. It is estimated that by 2050, the number of superbugs that die each year will reach 10 million, and once harmless bacteria will become deadly killers. The number of deaths worldwide due to drug-resistant infections, including tuberculosis, AIDS and malaria, has reached approximately 700,000 per year. Many people worry that if antibiotics gradually lose their effectiveness in the next few years, then medicine will return to the "dark age." In addition to the fact that existing drugs have become less effective, the development of new drugs is not optimistic. Only one or two new antibiotics have appeared in the past 30 years. In September 2018, the World Health Organization warned that antibiotics are gradually "depleting". A report pointed out that the development of new antibiotic drugs is “seriously scarceâ€. If antibiotics are not available, future caesarean sections, cancer treatments, and hip replacements will become very "adventurous." (任天) Applicator,Medical Dressing,Waterproof Wound Dressing,Wound Care Dressings Henan Maidingkang Medical Technology Co.,Ltd , https://www.mdkmedical.com