For example, the COVID-19 diagnosis and treatment guidelines published by the National Health Commission of the People's Republic of China (http://www.nhc.gov.cn/) have gone through a total of seven editions between the January 16, 2020 and March 3, 2020, certain contexts of which have been substantially modified.
Kwa mfano, Miongozo ya Upimaji na Matibabu ya COVID-19 iliyotolewa na Kamati ya Kitaifa ya Afya ya Jamhuri ya Watu wa China (http://www.nhc.gov.cn/), kati ya tarehe 16 Januari 2020 hadi tarehe 3 Machi 2020, imetoa jumla ya matoleo saba huku baadhi ya miktadha ikibadilishwa maudhui.