WHO: China's new virus outbreak needs further testing after 'hypothesis' on cause

WHO: China's new virus outbreak needs further testing after 'hypothesis' on cause

The origins of a new cluster of coronavirus infections in Beijing are uncertain, World Health Organization officials said, but the claim that it might have been caused by imports or packaging of salmon was not the “primary hypothesis”.

Mike Ryan, head of the WHO’s emergencies programme, stopped short of saying packaging needs to be tested systematically following the new infections.

"I think we need to look at what has happened in this case, I don’t believe it is the primary hypothesis. But it needs to be explored," Ryan said in a briefing.

Ryan said the U.N. agency was closely tracking the outbreak, has offered more technical help to China and was in close contact with the Beijing authorities as they seek to control it.

"As we’ve seen in many countries, the emergence of new clusters - especially when the origin of the cluster, the driver of the cluster, is not recognised - is always a concern," Reuters cited him as saying.

"But what we do like to see is an immediate response to that and a comprehensive set of measures," he added.

Ryan said he "fully expects" China to publish the genetic sequencing of the virus from the Beijing outbreak as it has done in the past. Genetic traces have suggested it could have come from Europe.

"The finding that this may represent a strain more common in transmission in Europe is important and it may reflect human-to-human transmission more than any other hypotheses," Ryan said. "But that remains to be seen."

He also said the agency may boost its country office team with more expertise in the coming days as the investigation develops.

Several districts of the Chinese capital put up security checkpoints, closed schools and ordered people to be tested for the coronavirus on Monday after an unexpected rise in cases linked to the biggest wholesale food market in Asia.

State-run newspapers reported that the virus was discovered on chopping boards used for imported salmon at Beijing’s Xinfadi market amid worries about a second wave of the pandemic in China.

China has halted purchases from European salmon suppliers because of fears they might be linked to a coronavirus.

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