community spread
US /kəˈmjuːnɪti spred/
UK /kəˈmjuːnɪti spred/
1.
社区传播, 本地传播
the spread of a contagious disease in a community from person to person, rather than from someone who has traveled to an affected area
:
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Health officials are concerned about the increase in community spread of the virus.
卫生官员对病毒社区传播的增加感到担忧。
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Tracing contacts becomes more difficult with widespread community spread.
随着社区传播的广泛，接触者追踪变得更加困难。