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Chinese scientists say two types of coronavirus could be infecting people

The preliminary study found that a more aggressive strain of the new coronavirus associated with the outbreak in Wuhan accounted for about 70% of analysed cases

Reuters  |  Shanghai 

coronavirus
The prevalence of the more aggressive virus type decreased after early January 2020

Scientists in China studying the outbreak of disease caused by the new say they have found that two main strains of the virus are circulating in humans and causing infections.

The researchers, from Peking University’s School of Life Sciences and the Institut Pasteur of Shanghai under the Chinese Academy of Sciences, cautioned that their study looked only at a limited range of data, and said follow-up studies of larger data sets were needed to better understand the virus's evolution.

The preliminary study found that a more aggressive strain of the new associated with the outbreak in Wuhan accounted for about 70 per cent of analysed cases, while 30 per cent were linked to a less aggressive type.

The prevalence of the more aggressive virus type decreased after early January 2020, they 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 disease 2019 (COVID-19),” they wrote in a study published on Tuesday in the National Science Review, the journal of the Chinese Academy of Sciences.

Experts not directly involved in the study said its findings were interesting, but cautioned against drawing firm conclusions from it.

First Published: Thu, March 05 2020. 01:23 IST
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