To assist in passenger contact tracing, a public health passenger locator card has been developed by an informal transportation working group convened by the World Health Organization.
为了便于与旅客保持联系，由世界卫生组织主持召开的非正式运输工作组会议出台了旅客公共卫生追踪卡。
To assist in passenger contact tracing, a public health passenger locator card has been developed by an informal transportation working group convened by the World Health Organization.
为了便于与旅客保持联系，由世界卫生组织主持召开的非正式运输工作组会议出台了旅客公共卫生追踪卡。
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