Research from the US university shows that nCoV can persist on surfaces longer during low temperature and humidity conditions in the fall.

The long existence of nCoV on surfaces in the fall "risks sparking new outbreaks," the team led by a professor of veterinary microbiology at Kansas State University Juergen Richt, wrote in a

The researchers found that at low temperatures and humidity, the virus could persist on a pedestrian's jacket if it was outside for a week and potentially infect during that time.

They believe that COV will also last longer indoors in cooler and less humid conditions.

To do the study, Richt's team used climate data from the Midwestern United States to recreate the conditions of the seasons in the biosafety chambers.

nCoV is applied to the surface of 12 materials people come into contact with every day, such as cardboard, concrete, rubber, gloves and N95 mask.

The research community had previously expected nCoV's spread rate to slow down in the summer, believing it would hardly last long in hot weather.

The results "clearly demonstrate that the virus lives longer in spring or fall, not summer," the researchers wrote.

The US Centers for Disease Control and Prevention has also warned of the danger of the situation getting worse in the fall.

Covid-19 appeared in 213 countries and territories, infected 25.4 million people, nearly 852,000 people died and about 17.7 million people recovered.