1Interventions are abbreviated as follows: ISC – individual school closure, T – antiviral treatment, H – household antiviral prophylaxis, E – extended antiviral prophylaxis, WP – 50% workplace closure
aHerbal interventions included bulk herbs, decoctions, pills;bNon-herbal interventions included acupuncture and Tuina;cCommon ICD-10: International Classification of Diseases 10.