Using mathematical models, a group of Chinese scientists have argued that the first case of Covid-19 appeared between April and November 2019 in the northeastern US, long before the explosion in Wuhan, China.
“The results of the calculation show that the COVID-19 epidemic in the United States has a high probability of starting to spread around September 2019,” says the 14-page paper published Wednesday in ChinaXiv, a repository operated by the National Library of Science of the Chinese Academy of Sciences.
The paper was written by Zhouwang Yang, Yunhe Hu and Zhiwei Ding from China University of Science and Technology, and the corresponding author Tiande Guo of the University of Chinese Academy of Sciences.
The quarter was set to “conclude the time of onset of the pandemic” based on “a method based on hybrid-driven data and models”. They modeled the positive test rate to fit current trends and used the “smallest squares estimation to get the optimal model parameters” before applying the vlerës core density… estimate to conclude the time of onset of the pandemic given the specific probability of trust ”.
Officially, the first case of Covid-19 was recorded in the US on January 20, 2020 — about a month after the explosion in the Chinese city of Wuhan. However, Chinese researchers argue that there is a 50% probability of the first cases in 11 US states and in the District of Columbia before that, as early as April 2019 in Rhode Island and until November of that year in Delaware.
Samples were taken from the most northeastern US states – Massachusetts, Vermont, New Hampshire, Connecticut, Rhode Island, New York, New Jersey, Delaware, Pennsylvania, Maryland, Virginia, Michigan and Louisiana.
Much of the work focuses on Maryland, the site of Fort Detrick – a U.S. military base used to search for biological weapons during the Cold War, and is now hosting the U.S. Biological Defense Program. Although the paper does not specifically mention Fort Detrick, numerous Chinese officials have repeatedly suggested that the virus may have come from there, contrary to US speculation that it originated from research into the benefit of function on nude viruses. , conducted at the Wuhan Institute of Virology (WIV).
The so-called ‘laboratory leak’ hypothesis focuses on funding that the US National Institutes of Health gave to a nonprofit called the EcoHealth Alliance, which partnered with the WIV to conduct research on the naked coronavirus.
Earlier this week, the web-based investigative team DRASTIC released documents allegedly leaked from a whistleblower, indicating that the EcoHealth Alliance was seeking funding from the Defense Advanced Research Projects Agency (DARPA) in 2018 to release modified viruses in naked caves in southern China, but the proposal was rejected as it was too dangerous.
The four researchers also claim that “a series of previous studies showed that the United States, Spain, France, Italy, Brazil and other countries were attacked by the coronavirus before it broke out in China.”