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Hong Kong scientists warn of 'super spreader' Wuhan virus, say more than 1,300 likely infected

Hong Kong scientists warn of 'super spreader' Wuhan virus, say more than 1,300 likely infected

Medical staff carry a box as they walk at the Jinyintan hospital, where the patients with pneumonia caused by the new strain of coronavirus are being treated, in Wuhan, Hubei province, China January 10, 2020. REUTERS/Stringer

HONG KONG: At least 1,300 individuals in the Chinese city of Wuhan are likely to have been infected with a novel coronavirus between Jan 1 and Jan 17, a team of scientists at the University of Hong Kong said at a press conference on Tuesday (Jan 21).

The scientists based their research on their experience of studying the spread of SARS (Severe Acute Respiratory Syndrome) in Hong Kong in 2003 and the spread of MERS (Middle East Respiratory Syndrome) in South Korea in 2015.

READ: Wuhan pneumonia outbreak - A timeline of how the new coronavirus spread

READ: China confirms human-to-human transmission as WHO emergency group meets

They said they had used the number of cases exported from Wuhan to other countries in arriving at their conclusions, taking into account air, train and road traffic.

On Tuesday, China reported its fourth death from the new strain of coronavirus and 291 cases of infected patients, whose symptoms included fever, coughing and difficulty breathing.

The death toll has risen to six in Wuhan.

Factfile on the coronavirus family, which circulate in animals and can be transmitted to humans. A new strain of this virus has been identified in Wuhan, China. (AFP)

"Our best guess in terms of the mode, which is the most likely number, is somewhere in the region of 1,300 plus," said Professor Gabriel Leung from the university's faculty of medicine. 

"If you take the average, the arithmetic average, which is the mean, and because the distribution of the probability density function is skewed to the right, with a right tail, therefore, it's a slightly bigger number. And it's roughly just under 1,700."

He added: "It is absolutely critical that public health authorities recognise a super-spreading event in the very earliest stages. Before it goes absolutely explosive."

The disease has spread beyond Wuhan to other Chinese cities, with Beijing and Shanghai confirming their first cases on Monday while more than a dozen others emerged in southern Guangdong province.

Cases have also been identified in Japan and South Korea, and health authorities around the world have started stepping up screening of travellers from China. 

Destinations of planned flights from January 20-27 from Wuhan, where a mystery virus outbreak has killed three people and infected over 200. AFP/Simon MALFATTO

READ: Wuhan pneumonia outbreak - Thai man possibly infected, authorities investigating

READ: Philippines probes possible case of virus from China

Little is known about the new virus, including its origin, but health authorities have confirmed human-to-human transmission. 

Some experts say the strain may not be as deadly as some other strains of coronavirus such as SARS, which killed nearly 800 people worldwide during a 2002/03 outbreak that also originated from China.

Source: Reuters/mn(hs)


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