Chinese scientists identify two types COVID-19

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A medical worker produces traditional Chinese medicine to treat patients infected by the COVID-19 coronavirus at a hospital in Wuhan in China’s central Hubei province on March 2, 2020.

STR | AFP via Getty Images

Researchers in China have found that two different types of the new coronavirus could be causing infections worldwide.

In a preliminary study published Tuesday, scientists at Peking University’s School of Life Sciences and the Institut Pasteur of Shanghai found that a more aggressive type of the new coronavirus had accounted for roughly 70% of analyzed strains, while 30% had been linked to a less aggressive type.

The more aggressive type of virus was found to be prevalent in the early stages of the outbreak in Wuhan — the Chinese city where COVID-19 was first detected late last year.

But, the frequency of this type of virus has since decreased from early January, the scientists said.

“These findings strongly support an urgent need for further immediate, comprehensive studies that combine genomic data, epidemiological data, and chart records of the clinical symptoms of patients with coronavirus disease 2019 (COVID-19),” they said.

Researchers cautioned that data examined in the study was still “very limited,” emphasizing that follow-up studies of a larger set of data would be needed in order to gain a “better understanding” of the evolution and epidemiology of COVID-19.

The findings were published in the National Science Review, the journal of the Chinese Academy of Sciences.

Travel restrictions

It comes shortly after the WHO confirmed the fast-spreading virus had infected more than 93,000 people worldwide, with at least 3,100 deaths.

The vast majority of those cases have been reported in China, although the number of new daily infections overseas has now exceeded those in the world’s second-largest economy.

South Korea, Italy, Iran and Germany have all recorded sharp upticks in cases of the flu-like virus in recent days, with many countries imposing travel restrictions on virus-hit areas worldwide.

The outbreak has now spread to more than 70 countries, while the WHO has warned COVID-19 could soon reach most, “if not all” nations around the world.

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