Table 20.3.

Decision matrix for declaration of community quarantine at the municipal/city level.

Criteria	No community quarantine (NCQ)	General community quarantine (GCQ)	Enhanced community quarantine (ECQ)	Extreme enhanced community quarantine (EECQ)
Confirmed cases/outbreak threshold ratio	<0.70	0.70–0.99	1–2	>2
Probability of outbreak	Less than 80%	80% to less than 90%	95% to less than 99%	99% or more
Case fatality ratio (CFR)	<0.1%	>0.1% to <1.0%	>1.0% to <2.0%	>2.0%

Adopted after Chinese Center for Disease Control and Prevention, (2020). The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) — China, 2020. http://weekly.chinacdc.cn/fileCCDCW/journal/article/ccdcw/2020/8/PDF/COVID-19.pdf [Retrieved April 05, 2021]; Cayton, P. J. (2020). Modified community quarantine beyond April 30: Analysis and recommendations. Philippines: University of the Philippines.