According to a media report, the White House Taskforce has issued warnings to states about the virus, which has, mutated in the United States.
Corona prevalence is severe in the US compared to spring and summer. Cases and deaths are at record levels.
Two days ago the daily death toll was close to 4 thousand. Its prevalence is likely to be as high as 50 per cent.
Concerns have been raised that these types of viruses can spread and exacerbate infections due to improper adherence to rules such as wearing masks and social distancing.