“Poison King” bat is really a walking virus bank, researchers have newly discovered 6 kinds of coronavirus
A sudden new coronavirus epidemic (COVID-19) completely changed the way we opened in 2020. Today, as of 7:15 on April 14, Beijing time, more than 2 million cases have been diagnosed worldwide. Among them, the number of confirmed cases in the United States soared to 680,000.Under the rampant epidemic, scientists have been trying to figure out the chain of transmission of the new coronavirus (SARS-Cov-2). All the current discussions on the source of the virus are actually speculation. At the moment, one theory is considered most likely-the virus comes from bats.In order to determine the “primitive virus type”, researchers at the University of Cambridge in the UK recently analyzed the data of 160 new coronavirus genomes collected from around the world from December 24, 2019 to March 4, 2020, and found The main variants of SARS-Cov-2 were named A, B and C according to the amino acid changes.Among them, type A virus is the closest to coronavirus found in bats and pangolins. It is the original virus type. Type B is derived from type A and type C is derived from type B. In addition, the distribution of the three types of variants in the world is different, and the difference is very large. Types A and C are mostly found in Europeans and Americans. Type B is the most common type in East Asia.Researchers at the University of Cambridge said that the study showed that the first case of new coronary pneumonia may be the transmission of bats to humans, which occurred between September 13 and December 7, 2019. Related research results were published in the “PNAS” magazine. https://doi.org/10.1073/pnas.2004999117Due to unique life history characteristics, including sustained flight ability, long-distance distribution potential, concentration in densely populated areas, and adaptability to suburban environments, bats are natural hosts for many zoonotic pathogens and are truly walking “virus database”.So, what other coronaviruses originate from bats? Recently, researchers from the Smithsonian National Animal Park and Nature Conservation Institute of the United States have newly harvested free-range bats in Myanmar. They have discovered six new coronaviruses for the first time. Related research results were published in the journal “PLOS ONE”.Coronaviruses are a large family that includes severe acute respiratory syndrome (SARS), Middle East Respiratory Syndrome (MERS) and the recent new crown epidemic “pandemic” (SARS-CoV-2). It should be emphasized that the six viruses identified in the latest research do not seem to be closely related to the pathogens that cause the above three diseases. https://doi.org/10.1371/journal.pone.0230802Specifically, in the latest study, the researchers conducted sampling and data collection at three selected locations in Myanmar (high probability of human-animal interaction) between May 2016 and August 2018, from Saliva and fecal samples were collected from more than 400 bats representing 11 species, mainly to detect coronavirus in free-range bats living near the human community.In the end, the researchers detected coronavirus in the 48 samples they collected and identified a total of 7 different viruses, 6 of which were previously unknown. The researchers pointed out that further research is needed to fully understand the potential of these six new coronaviruses to spread to other species and their impact on human health, and to take precautions to prevent future outbreaks.The authors of the latest research say that the importance of bats to ecosystems and human communities, while at the same time being a natural reservoir for many zoonotic pathogens, poses a challenge to disease control. These findings underscore the importance of monitoring zoonotic diseases in wild animals. These results will guide future monitoring of bat populations to better detect their potential viral threat to public health.Nowadays, outbreaks of new infectious diseases (EID) have become more frequent, and about 40 species have been identified since the 1970s, such as Ebola virus, SARS, Hendra, swine flu, and Nipah virus, etc. . About 60-75% of EIDs are considered “animal infectious”, and 70% of them originate from wild animals. What we can do is to respect nature, respect life, and follow the laws of nature.