安倍首相・西浦教授が警告していないが重要な感染防止。
特に武田教授が強調している注意は
ヒト・モノ・ヒト 経路の感染。
ヒトとの距離をとっても以下はだめ。ドアノブ、エレベーターボタン、エスカレーター手すり、コンビニなどの共用トイレの飛沫など。
英語のサイトでは
もっと詳しい
Objects and Surfaces
The virus could spread by touching an object or surface with virus present from an infected person, and then touching the mouth, nose or eyes.
Surface contamination as observed in the study cited above [source]:
Computer mouse (ICU 6/8, 75%; GW 1/5, 20%)
Trash cans (ICU 3/5, 60%; GW 0/8)
Sickbed handrails (ICU 6/14, 42.9%; GW 0/12)
Doorknobs (GW 1/12, 8.3%)
76.5% of all personal items sampled at the University of Nebraska Medical Center (UNMC) were determined to be positive for SARS-CoV-2 [source]
Of these samples, 81.3% of the miscellaneous personal items were positive by PCR, which included:
Of these samples, 81.3% of the miscellaneous personal items were positive by PCR, which included:
Exercise equipment
Medical equipment (spirometer, pulse oximeter, nasal cannula)
PC and iPads
Reading glasses
Other findings:
Cellular phones (83.3% positive for viral RNA)
Remote controls for in-room TVs (64.7% percent positive)
Toilets (81.0% positive)
Room surfaces (80.4% of all sampled)
Bedside tables and bed rails (75.0%)
Window ledges (81.8%)
Duration of contamination on objects and surfaces
Although the virus titer was greatly reduced, viable SARS-CoV-2 was measured for this length of time:
Plastic: up to 2-3 days
Stainless Steel: up to 2-3 days
Cardboard: up to 1 day
Copper: up to 4 hours