Solid waste management during the COVID-19 pandemic

The outbreak of COVID-19 is affecting the waste management, which is gaining increasing concerns all over the world. The waste generated during the pandemic is completely different from that of the normal in composition and property (i.e., plastic waste), and it possibly contains various virus, which suggests that it should be handled and disposed carefully. This chapter introduces the current status of waste management during the pandemic. The points for collection, transportation, treatment/disposal during the pandemic were summarized in order to provide reference for other countries in the post-epidemic era of solid waste management. © 2023 Elsevier Inc. All rights reserved.

Modeling and Prediction of COVID-19 with Long Incubation Period Under High-Intensity Control in China

At the end of 2019, coronavirus disease (COVID-19) broke out in Wuhan, Hubei. With the spring festival travel rush, the epidemic spread rapidly to other provinces and even overseas. In the view of this epidemic, in this paper, we improved the classic SEIR model, introducing a new parameter, average delay time, to describe the incubation period and time for nucleic acid detection. Based on the data published by the National Health Commission of China, parameters of the model were estimated first. Then the model was used to simulate the development of COVID-19. The number of new confirmed cases and remaining confirmed cases of each day are predicted. Finally, the results show that the model is well fit for the actual data. By now, this epidemic has been basically under control, and under the current medical level and control measurements, it is hoped to announce the end of COVID-19 in China before May. © 2022, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.