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And officials said, pointing to a British analysis, that there is no evidence that the mutated strain of the virus increases the risk of the disease, although it is more widespread.
Maria van Kerkhove, technical director of the World Health Organization, explained that scientists are discussing the issue of antibodies in the body that respond to the virus and that she expects results in the coming days and weeks.
Mike Ryan, chief emergency expert at the World Health Organization, said countries were operating on a “precautionary principle” in their response to stress.
Global anxiety rose after the British government tightened preventive measures, imposing the strictest quarantine since last March, and Prime Minister Boris Johnson said that when the virus changes its method of attack, authorities are also obliged to do a change in the form of defense.
A similar version of the British strain was also detected in South Africa, and it was found in 90 percent of samples that had undergone genetic sequence analysis since mid-November.
Scientists are concerned about the mutation, but say it was not surprising, but rather expected, especially since researchers detected thousands of microscopic changes in the virus as it traveled the entire world.
