Geneva: Scientists investigating the outbreak of the global epidemic coronavirus have yet to find out how and why the epidemic spread.

The World Health Organization (WHO) says a team of experts sent to the Chinese city of Wuhan to investigate the spread of the coronavirus is expected to release a brief report next week.

The head of the agency, Tedros Adhanom Fibrosis, added that all assumptions remain and further research is needed.

He was speaking at a news conference with Peter Ben Embarek, head of the team heading to Wuhan, China yesterday.

Embarek said that they are now well informed of the epidemic that happened in the early days of December 2019, he further added that they are still a long way from finding the source of the coronavirus.

The experts have visited the city of Wuhan from 29th of January to 10th of February. They investigated a seafood market that is believed to be the starting point for the epidemic.

The WHO team also visited the Wuhan Institute of Virology. The institute is known for its research on coronaviruses in bats.

It should be noted that the administration of former US President Donald Trump had claimed that the coronavirus may have come out of this institution.

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