Effectiveness of workplace social distancing measures in reducing influenza transmission: a systematic review

BMC Public Health

Table 5 Percentage reduction in peak influenza attack rate in the general population, modeling studies, 2000–2017

First author, year published	Country	Influenza strain	Intervention^a	Percentage reduction^b
First author, year published	Country	Influenza strain	Intervention^a	R₀ ≤ 1.9	R₀ = 2.0–2.4	R₀ ≥ 2.5
Zhang, 2012 [31]	Singapore	Not reported	Single	28	–	–
Mao, 2011 [32]	USA	Seasonal scenario (R₀ = 1.4) and a pandemic scenario (R₀ = 2.0)	Single	97	53	–
Xia, 2013 [33]	China	2009 Influenza A(H1N1) pandemic	Single	51	–	–
Xia, 2013 [33]	China	2009 Influenza A(H1N1) pandemic	Single + VAC	91	–	–
Milne, 2008 [34]	Australia	Pandemic strain	Single	39	25	18
Milne, 2008 [34]	Australia	Pandemic strain	Multiple	97	99	99
Milne, 2013 [35]	Papua New Guinea	Pandemic strain	Multiple	91	–	–

Abbreviations: R₀ basic reproduction number, VAC vaccination
^aSingle: Workplace social distancing; Multiple: Workplace social distancing and other nonpharmaceutical interventions; VAC: Vaccination
^bPercentage reduction = ((Attack rate in the absence of intervention – Attack rate with intervention) / Attack rate in the absence of intervention) × 100