A new type of coronavirus is most active at 4°C

Scientists have determined the temperature at which a new type of coronavirus is most active. According to their research, it is + 4°C – under such conditions SARS-CoV-2 is able to exist for up to two weeks. The work of researchers from the University of Hong Kong is published in the journal medRxiv.org.

According to the study, at room temperature (about 22°C) the virus is able to remain stable for a week. A temperature of 55°C leads to its death in two hours, and at 70°C it is able to exist in just five minutes.

“The virus is very stable at 4 degrees but is sensitive to heat. At four degrees, the infection can last more than two weeks, while when the temperature rises to 70 degrees, it dies within five minutes”.

Yong Jean, lead author of the study
In addition, scientists have determined the survival of the virus on various surfaces. For example, it can exist on the surface of medical masks for at least a week – provided that they are at room temperature and relative humidity of about 65%.

On paper, SARS-CoV-2 can last less than three hours, while on wood and fabric – up to two days. Glass allows the virus to remain active for four days, stainless steel and plastic for more than a week.

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