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| 1 | Stability and infectivity of coronaviruses in inanimate environments显示文摘Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is a highly contagious virus that can transmit through respiratory droplets,aerosols,or contacts.Frequent touching of contaminated surfaces in public areas is therefore a potential route of SARS-CoV-2 transmission.The inanimate surfaces have often been described as a source of nosocomial infections.However,summaries on the transmissibility of coronaviruses from contaminated surfaces to induce the coronavirus disease 2019 are rare at present.This review aims to summarize data on the persistence of different coronaviruses on inanimate surfaces.The literature was systematically searched on Medline without language restrictions.All reports with experimental evidence on the duration persistence of coronaviruses on any type of surface were included.Most viruses from the respiratory tract,such as coronaviruses,influenza,SARS-CoV,or rhinovirus,can persist on surfaces for a few days.Persistence time on inanimate surfaces varied from minutes to up to one month,depending on the environmental conditions.SARSCoV-2 can be sustained in air in closed unventilated buses for at least 30 min without losing infectivity.The most common coronaviruses may well survive or persist on surfaces for up to one month.Viruses in respiratory or fecal specimens can maintain infectivity for quite a long time at room temperature.Absorbent materials like cotton are safer than unabsorbent materials for protection from virus infection.The risk of transmission via touching contaminated paper is low.Preventive strategies such as washing hands and wearing masks are critical to the control of coronavirus disease 2019. | Shi-Yan Ren Wen-Biao Wang Ya-Guang Hao Hao-Ran Zhang Zhi-Chao Wang Ye-Lin Chen Rong-Ding Gao | 2020 | World Journal of Clinical Cases2020，8，8： | 7 |
| 2 | 含银抗感染制剂的研究进展显示文摘自古代起,银的抗菌性就已引起了人们的注意,并被广泛地应用在烧伤、创伤、细菌感染等的治疗上.近年来,随着细菌耐药性和各种变异病毒的产生,作为一种无机抗感染制剂,银更是受到了人们的广泛关注.本文主要介绍银应用于医学研究的状况,并对银离子、纳米银、以及各种负载银制剂,如以羟基磷灰石(HA)为载体的银制剂、以分子筛(zeolite)为载体的银制剂和以有机聚合物(PMMA)为载体的银制剂等的抗感染性研究进行了综述,为下一步临床研究奠定基础. | 张净宇 王卓鹏 郭嵩 金辉 王金成 于吉红 | 2010 | 科学通报2010，55，17： | 4 |
| 3 | 纳米Ag和载Ag材料的灭活病菌作用评述显示文摘已有的研究工作显示纳米Ag和载Ag材料具有灭活病毒的作用。本文梳理了国内外相关的研究进展,从纳米Ag和载Ag材料的灭活病毒机制,以及生物安全性等几个方面进行评述。对于载Ag钢铁材料的灭活病菌作用,以及Ag对力学性能和耐腐蚀性能的影响也作了归纳。在作者研发的银合金化在不锈钢和铸铁、纳米Ag珐琅层铸铁的应用表明了灭活病菌的效果。 | 胡业旻 廉心桐 董瀚 | 2020 | 金属学报2020，56，4： | 3 |
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