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Research Paper | Medical Science | Canada | Volume 10 Issue 3, March 2021
Upgrade Social Distancing into Airflow Inaccessible Distancing Code Validated by E. coli DH5? Spray Viable Colony Counting Simulation and the Technical Validation of COVID-19 Airborne Infection UV Quarantine® Devices
Jingli Xing | Zongxin Wen | Yong Liu | Chao Li  | Xuhui Chen | Chao Yang | Weiyi Liu | Qingzhong Guo | Dongwei Chen | Yi Yu Lai 
Abstract: While global attentions focus on COVID-19 immunological solutions, we believe a future possible vaccine will unexceptionally compromise to immunosenescence which will leave those older than 55 years of age inactive to any immobilization. We then validate the UV quarantine® system that shielding the UV hurt instead of segregating the contagious agents in an environment validated by 106 cell/ml E. coli DH5 spray viable colony simulation. Various experimental designs reveal that the social distancing rule should be upgraded to the “Airflow Inaccessible Distancing” code due to the undetectable small-sized infectious aerosols, saturation secondary infection from various filtering devices & quarantine spaces, and the mixing efficiency of conventional chemical sanitizers. The new code and its integrated COVID-19 Airborne Infection UV quarantine® Devices are globally the highest-efficiency systems for blocking COVID-19 from spreading under general social conditions. Portable UVC 253.7nm meters can release the safety concerns for public self-made or commercially available devices. Meanwhile, an acrylic system and relevant methods are developed to validate the performance of UV quarantine® devices and conventional masks under real applications. Also, a 33 % placebo infection rate is suggested as the minimum requirement for Phase 3 clinical trials of all medical devices, vaccines, or drugs intended for COVID-19 due to the existence of human respiratory rhyme and the weakness of nasal turbinates in blocking infection transmission via body HuNAb increase. And base on such a placebo infection rate, it is recommended to use intervention with over 99 % block efficiency that equivalent to a lockdown to control the pandemic at the population level.
Keywords: Airflow inaccessible distance, COVID-19, UV quarantine device, placebo infection rate, human respiratory rhyme, nasal turbines
Edition: Volume 10 Issue 3, March 2021,
Pages: 210 - 224
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