Impact analysis of environmental and social factors on early-stage COVID-19 transmission in China by machine learning.

Environ Res · 2022 · PMC8776626 · PMID 35065932

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extremely significantno p-value reported

China's public health alert system is categorized into four levels in terms of the nature of the incidents, the extent of harm and scope: Level-I (extremely significant), Level-II (significant), Level-III (major) and Level-IV (normal) ( The Central People's Government of the People's Republic of China, 2020 ).

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