"Business Insider" reported on the 2 nd that Jonna Mazet, an epidemiologist at the University of California, Davis, who had trained and cooperated with Wuhan Virus Research Institute, believed that,It is highly unlikely that the spread of Covid-19 originated from a laboratory leak., and listed four reasons.
△ "Business Insider" report screenshot
Reason 1: The laboratory samples don’t match Covid-19.
The article pointed out that after Jonah Mazet’s team sequenced Covid-19, Shi Zhengli, a researcher at Wuhan Virus Research Institute who had worked with her before, immediately went to check the experimental records andThe genetic information of the new coronavirus was compared with other coronaviruses found by the team in bats before, and it was found that they did not match.
△ Epidemiologist Joanna Mazet said that her colleagues compared the genome of the new coronavirus with the genetic information of other bats collected by the previous team, and then found that they did not match.
At the same time, Mazet and Shi Zhengli also stressed that,Before the outbreak of COVID-19, they had never detected other viruses related to it.
△ Mazet said that her colleagues were very sure that this virus had never been identified before the outbreak in COVID-19.
Reason 2: The laboratory implements strict safety protocols.
Mazette pointed out that some people had questioned the safety of Wuhan Institute of Virology (WIV) of Chinese Academy of Sciences before, but she thought that whether in the laboratory or at the sampling site,The work of researchers in China is beyond reproach.
△ Jona Mazet: Shi Zhengli’s work is beyond reproach.
She also said that the protection work of laboratory researchers is in place.At the same time, when studying samples, researchers only use inactivated and non-infectious samples.
△ Mazette said that when studying samples, researchers only use inactivated and non-infectious samples.
Reason 3: Covid-19 is the latest virus that broke out in zoonotic diseases.
The report also said that experts pointed out thatThe outbreak of the new type of coronary pneumonia is not due to leakage, but more likely because COVID-19 is the latest disease spreading from animal hosts to humans.
△ Experts pointed out that the outbreak of COVID-19 epidemic was not caused by leakage, but more likely because COVID-19 is the latest disease spreading from animal hosts to humans.
Reason 4: Ordinary people are more exposed to live viruses than researchers.
In addition, Mazet said,Covid-19 is not the fourth reason for leaking from the laboratory, but ordinary people are more exposed to live viruses than researchers.She believes that caves and wild environments where bats are sampled will be more dangerous for ordinary people, because researchers use personal protective equipment (PPE) when collecting samples, but ordinary people may not use it.
△ Mazette said: "The caves and wild environments where samples are collected are dangerous places for people, because they may be exposed to viruses that live in animals."
