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COVID-19 infection prevention and control guidance : China

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China’s National Health Commission on Tuesday released the latest (seventh) version of COVID-19 prevention and control guidelines, making revisions contents such as COVID-19 etiological and epidemiological features, as well as epidemic monitoring and handling.

Stressing that the disease is mainly transmitted via respiratory droplets and close contact, the latest version said there are risks of infection when people are exposed to contaminated objects or environments under certain conditions.

When five or more cases that are linked by the same location of exposure are confirmed, it is regarded as an infection cluster, said the guidelines, which identified the occurrence of two or more such confirmed cases as an infection cluster in previous versions.

For the convenience of epidemiological investigations, the latest version gave specific criteria for imported cases, new infections linked to imported cases, and close contacts of close contacts, among other terms.

When five or more cases that are linked by the exact same location of exposure have been confirmed, it is regarded as a disease bunch, said the guidelines, that identified the occurrence of 2 or more such confirmed cases as an illness cluster in prior versions.For the ease of epidemiological investigations, the most recent version gave specific criteria for imported cases, new ailments associated with imported cases, and close connections of close contacts, along with other terms.After having a COVID-19 test at ports of entry, passengers entering the mainland ought to spend seven days in isolation centers for medical monitoring and take another test before finishing quarantine, according to the guidelines.If the test result is negative, passengers from outside the mainland can isolate themselves at home for another seven days before they’re free to travel about, the guidelines added

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