マスクの文献

2020.3.19 Can a face mask protect me from coronavirus? Covid-19 myths busted Hannah Devlin

街を歩くときやバスに乗るときにマスクは要らない。だから買いだめする必要はないとまっとうな意見を述べています。

Claim: ‘Face masks don’t work’ Wearing a face mask is certainly not an iron-clad guarantee that you won’t get sick – viruses can also transmit through the eyes and tiny viral particles, known as aerosols, can penetrate masks. However, masks are effective at capturing droplets, which is a main transmission route of coronavirus, and some studies have estimated a roughly fivefold protection versus no barrier alone (although others have found lower levels of effectiveness). If you are likely to be in close contact with someone infected, a mask cuts the chance of the disease being passed on. If you’re showing symptoms of coronavirus, or have been diagnosed, wearing a mask can also protect others. So masks are crucial for health and social care workers looking after patients and are also recommended for family members who need to care for someone who is ill – ideally both the patient and carer should have a mask. However, masks will probably make little difference if you’re just walking around town or taking a bus so there is no need to bulk-buy a huge supply

2018.04.17日常的なマスク着用による感染予防効果について 吉田製薬 2018.4.17 mask1

マスク着用のみでの感染予防効果を調査した報告は少なく、現時点ではマスク着用単独およびマスクの種類による予防効果は明確ではなく、差は認められていません。

健常者の日常的なマスク着用については、特別なハイリスクの状況下以外では、インフルエンザ流行期における家または公共施設でのマスク着用を推奨していません。(CDC)