The special envoy of the World Health Organization (WHO) for covid-19, David Nabarro, admitted this Tuesday that it is “manifestly difficult” to find the origin of the virus that caused the pandemic, but that works with several hypotheses.
“Finding the origin of a virus, when trying to explain where a disease comes from, is manifestly difficult,” Nabarro told BBC Radio 4.
“We don’t know the precise origin of HIV (the virus that causes AIDS), we don’t know the precise origin of Ebola and it will take a long time to discover the origin it needs covid-19, ”added the expert, before WHO officially published its report on the pandemic.
Nabarro said the organization works with several hypotheses, but that this job takes time.
“All chances are still on the table,” said WHO Director-General Tedros Adhanom Ghebreyesus on Monday.
The report from the mission that investigated the origin of covid-19 in China will be officially published this Tuesday.
According to the media that had access to a draft of the report, it defends that the most probable theory of the origin of the pandemic was the transmission of the new coronavirus bats to humans by means of another animal, while the chance of a virus escaping from a laboratory is “extremely unlikely”.
The report recommended further studies based on these three hypotheses, but dismisses the possibility that the virus was transmitted to humans due to a laboratory accident.
In their findings, the researchers said that supply chain studies of the Huanan market (and other markets in Wuhan) did not allow to find “Evidence of the presence of infected animals, but the supply chain analysis provided information” useful for targeted monitoring studies, especially in neighboring regions.
Experts also called for “not to neglect animal products from regions outside Southeast Asia” and argued that future surveys should be designed “in larger areas and in a larger number of countries”.
The covid-19 pandemic caused at least 2,784,276 deaths worldwide, resulting from more than 127 million cases of infection, according to a report made by the French agency AFP.