While China resolutely rejected the suspicion of NCOV from the Vu Han Virus Institute, many questions about this hypothesis have not been answered yet.

US President Joe Biden said he had directed the Intelligence Community to strengthen the efforts to investigate the origin of Covid-19 and report it again within 90 days.

Therefore, according to the commentators Madeleine Spence and Matthew Campbell of The Times, the first question is what actually happened inside the WIV's laboratory.

Famous Family Scientist (left) at Vu Han Virus Institute, China, in February 2017.

NCOV hypothesis, virus that has killed more than 3.5 million people and devastates the global economy, which can originate from the WIV instead of through contact between people with infected animals that have been considered a pronception

Wiv collects many genes from wildlife for testing at the study room, which uses live viruses in animals to assess the ability to infect humans, with strict safety procedures.

After the visit to the Wiv in January 2018, American officials expressed concern about the level of security at the laboratory in diplomatic telegraphs, which after that Washington Post was collected.

WIV's public records show that this facility conducts functional exploration studies, a kind of controversial activity with the purpose of creating a higher ability to infect viruses, to predict types

Chung Thach, the leading researcher at the WIV with a nickname of female bat people, has developed one of the world's largest databases about viruses related to bats.

Ms. Thach then sighed when the result showed that the gene sequence of the virus was infected without coinciding with the viruses of her group took samples.

Another question is whether the patient No. 0 is a scientist.

This scenario ever happened in the previous pandemics.

Hoa Nam Seafood Market in Wuhan, China, was blocked in January 2020.

Chinese attitudes in front of speculations of NCOV origin make many people suspect.

This trip is more visited than investigation, Larry Gostin, Director of WHO's National and Global Health Law Cooperation Center, evaluating.

British zoology Peter Daszak, the key member of the WHO investigation team has concluded that the virus hypothesis leaked from the WIV, previously criticized this question was silly.

The fact that China announced that it did not cooperate with WHO's second-stage independent investigation to reinforce suspicion.

Before the doubts of stamping, the Chinese Foreign Ministry spokesman Uong Van Ban on May 31 said the traceability job of Covid-19 should let scientists lead instead of intelligence, simultaneously

On May 26, the Chinese Embassy in the US also announced that some forces have deliberately manipulate politics and play the blaming game, and support a comprehensive study of the entire Covid-19 CA

Chinese scientists and officials said it was time to welcome the WHO expert group as they did, to carefully investigate biological laboratories in the country, answering a series of related questions

Zeng Guang, expert used to be the leading epidemiological epidemiology center of Chinese disease prevention and control, said that a group of MPs suggested US Congress investigating Covid-19 very ridiculously.

In terms of American intelligence that some scientists in Wuhan are sick with similar symptoms of Covid-19 before the epidemic is announced, Marion Koopmans, WHO Dutch Virus House on Wuhan,

Many scientists around the world also trust NCOV with natural origin and have no evidence to support the hypothesis of virus leaking from the laboratory.