As healthcare officials combat to stem the outbreak of coronavirus, scientists in China say preliminary research displays that COVID-19 is mutating and there are at minimum two sorts of the virus now.

One particular of those, the much more intense pressure, has infected 70% of the individuals examined, while a a lot less intense strain was linked to the relaxation, according to health professionals at Peking University’s College of Lifestyle Sciences and the Institut Pasteur of Shanghai.

Scientists dubbed the intense pressure “L type” and the significantly less common version “S type”. The L type strain was witnessed extra commonly in Wuhan, in which the outbreak began, but researchers take note that the frequency of infection has dropped off. They also cautioned that the facts they experienced available for analyze was “very limited” and comply with-ups ended up needed to fully grasp the evolution of the COVID-19.

“Whereas the L kind was additional prevalent in the early stages of the outbreak in Wuhan, the frequency of the L form decreased just after early January 2020,” they wrote. “Human intervention may perhaps have placed extra severe selective stress on the L kind, which could possibly be a lot more aggressive and spread more immediately.”

Researchers say the different strains ended up probable prompted via a mutation of the ancestral edition of the virus. And that could suggest a lot more are coming. They urged the scientific neighborhood to arrive collectively to struggle and contain the outbreak.

“These findings strongly guidance an urgent will need for even more immediate, extensive research that mix genomic knowledge, epidemiological information, and chart data of the clinical symptoms of individuals with coronavirus disease 2019 (COVID-19),” they wrote.

Far more should-read tales from Fortune:

—How to imagine about COVID-19
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—Coronavirus is supplying China protect to develop its surveillance. What takes place next?
—Coronavirus reveals why we want vaccines ahead of, not immediately after, an outbreak
—Before coronavirus, there were SARS and MERS. Do epidemics at any time actually end?

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