Representational Pic
Representational Pic

London: The number of people infected by a mystery SARS-like virus that has killed two people in China is likely hundreds more than officially reported, researchers have said.

Chinese authorities have said pneumonia linked to the virus has hit at least 41 people in the country, with the outbreak centred around a seafood market in the central city of Wuhan.

But a paper published Friday by scientists with the MRC Centre for Global Infectious Disease Analysis at Imperial College in London said the number of those affected in the city was likely to be well over a thousand.

The scientists at the Centre which advises bodies including the World Health Organization said they estimated a "total of 1,723 cases" in Wuhan would have been infected as of January 12.

The researchers took the number of cases reported outside China so far two in Thailand and one in Japan to infer how many were likely infected in the city, based on international flight traffic data from Wuhan's airport. "For Wuhan to have exported three cases to other countries would imply there would have to be many more cases than have been reported," Professor Neil Ferguson, one of the authors of the report, told the BBC.

"I am substantially more concerned than I was a week ago," adding, however, that it was "too early to be alarmist".

"People should be considering the possibility of substantial human-to-human transmission more seriously than they have so far," he added, saying it was "unlikely" that animal exposure was the main source of infection. 2 people are known to have been killed by the virus, a pathogen from the same family as deadly SARS virus.

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