View full-text article in PMC Results Phys. 2020 Dec 30;20:103715. doi: 10.1016/j.rinp.2020.103715 Search in PMC Search in PubMed View in NLM Catalog Add to search Copyright and License information © 2020 The Authors. Published by Elsevier B.V. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. PMC Copyright notice Table 2. Sensitivity inspection of R0 and optimal surveillance J based on prevention strategies for weights w4=200,φ1=100,φ2=20,φ3=150,φ4=300, t∈0,30and at different values of α. α Intervention Strategies R0 J 0.8 mm=0,sd=0,ch=0,sc=0 2.08323 6171.69 mm=0.3,sd=0.5,ch=0.65,sc=0.9 0.236717 9702.47 mm=0.3,sd=0.7,ch=0.5,sc=0.9 0.227723 9068.92 mm=0.6,sd=0.5,ch=0.3,sc=0.9 0.246215 9017.57 0.95 mm=0,sd=0,ch=0,sc=0 2.83546 9622.94 mm=0.3,sd=0.5,ch=0.65,sc=0.9 0.266884 9724.52 mm=0.3,sd=0.7,ch=0.5,sc=0.9 0.252657 9090.57 mm=0.6,sd=0.5,ch=0.3,sc=0.9 0.278141 9040.02 1 mm=0,sd=0,ch=0,sc=0 3.17529 10815.9 mm=0.3,sd=0.5,ch=0.65,sc=0.9 0.278141 9732.32 mm=0.3,sd=0.7,ch=0.5,sc=0.9 0.266884 9098.23 mm=0.6,sd=0.5,ch=0.3,sc=0.9 0.290079 9047.98