However, depending on where the changes are located in the virus’s genetic material, they may affect the virus’s properties, such as transmission (for example, it may spread more easily) or severity (for example, it may cause more severe disease).
WHO and its international network of experts, are monitoring changes to the virus so that if significant mutations are identified, WHO can report any modifications to interventions needed by countries and individuals to prevent the spread of that variant.
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世卫组织推荐的现行战略和措施继续对大流行开始以来发现的病毒变体有效。
The current strategies and measures recommended by WHO continue to work against virus variants identified since the start of the pandemic.