No abstract available
MeSH terms
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Betacoronavirus*
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COVID-19
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China / epidemiology
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Coronavirus Infections / epidemiology*
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Health Resources / organization & administration*
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Humans
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Pakistan / epidemiology
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Pandemics
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Pneumonia, Viral / epidemiology*
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SARS-CoV-2
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Travel
Grants and funding
This work was supported by Chinese National Natural Fund [81573258]; Jiangsu Provincial Six Talent Peak [WSN-002]. The funder had no role in study design, data collection and manuscript writing .