医療資源の乏しい国・地域での話なので、日本で一般化できるかどうかはむずかしいが、バングラデシュのそのまた田舎で、手洗い推進プロモーション。
Impact of Intensive Handwashing Promotion on Secondary Household Influenza-Like Illness in Rural Bangladesh: Findings from a Randomized Controlled Trial
Pavani K. Ram. et. al.
PLOSone Published: June 11, 2015DOI: 10.1371/journal.pone.0125200
Multivariable analysis of impact of intensive handwashing promotion on secondary attack risks (SAR) of influenza-like illness, and influenza, among household compound members of index case-patients, Kishoregonj, Bangladesh, 2009–2010.
効果が無い!
ところで、先進国ではどうか?
Mask use, hand hygiene, and seasonal influenza-like illness among young adults: A randomized intervention trial
Allison E. Aiello, et. al.
J Infect Dis. (2010) 201 (4): 491-498.
Adjusted Kaplan-Meier survival curve. The figure shows the proportion of participants that are ILI-free by intervention arm over the 6-week study period adjusted for age, sex, race/ethnicity, handwashing practices, sleep quality, stress, alcohol consumption, and influenza vaccination (n = 1042).
対照群に比較して、週4−6週で、35%減少ということだが Kaplan-Meier曲線見るとさほど差が無いように見える
・・・マスクにしろ、手洗いにしろ、しないよりは良いが、過剰に信用しないことが無難
石ケン+流水習慣手洗いも効果あるけど、結局は、年間6回の感染回数を5回に減らすに過ぎない、アルコールなんて5.6回・・・と効果に乏しい
Hand washing with soap and water together with behavioural recommendations prevents infections in common work environment: an open cluster-randomized trial
Carita Savolainen-Kopra, et. al.
Trials 2012, 13:10 doi:10.1186/1745-6215-13-10
薬用石けん ミ○ーズの宣伝なんて見ると、すべての感染をシャットアウトするようなイメージだが現実的には、感染経路は多経路・・・