IJERPH, Vol. 17, Pages 2275: Quarantine Vehicle Scheduling for Transferring High-Risk Individuals in Epidemic Areas

IJERPH, Vol. 17, Pages 2275: Quarantine Vehicle Scheduling for Transferring High-Risk Individuals in Epidemic Areas International Journal of Environmental Research and Public Health doi: 10.3390/ijerph17072275 Authors: Min-Xia Zhang Hong-Fan Yan Jia-Yu Wu Yu-Jun Zheng In a large-scale epidemic outbreak, there can be many high-risk individuals to be transferred for medical isolation in epidemic areas. Typically, the individuals are scattered across different locations, and available quarantine vehicles are limited. Therefore, it is challenging to efficiently schedule the vehicles to transfer the individuals to isolated regions to control the spread of the epidemic. In this paper, we formulate such a quarantine vehicle scheduling problem for high-risk individual transfer, which is more difficult than most well-known vehicle routing problems. To efficiently solve this problem, we propose a hybrid algorithm based on the water wave optimization (WWO) metaheuristic and neighborhood search. The metaheuristic uses a small population to rapidly explore the solution space, and the neighborhood search uses a gradual strategy to improve the solution accuracy. Computational results demonstrate that the proposed algorithm significantly outperforms several existing algorithms and obtains high-quality solutions on real-world problem instances for high-risk individual transfer in Hangzhou, China, during the peak period of the novel coronavirus pneumonia (COVID-19).
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research

Related Links:

This article provides a Bayesian methodology to estimate outbreak size from one or more surveillance systems such as virologic testing of pneumonia cases or samples from a network of general practitioners.
Source: Epidemiology - Category: Epidemiology Tags: Infectious diseases Source Type: research
Conclusion: The current prevention and control measures have effectively reduced the transmissibility of COVID-19; however, R 0t is still larger than the threshold 1. The results show that the government adopting the Wuhan lockdown strategy plays an important role in restricting the potential infected persons in Wuhan outflow from the epidemic area and avoiding a nationwide spread by quickly controlling the potential infection in Wuhan. Meanwhile, since Jan. 18, 2020, the people successively accessed COVID-19-related information via the Internet, which may help to effectively implement the government's prevention and contr...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
Conclusions: The outbreak of the epidemic could promote coronavirus research, meanwhile, coronavirus research contributes to overcoming the epidemic. Attention should be drawn to the latest popular research, including “Spike protein,” “Receptor binding domain,” and “Vaccine.” Therefore, more and more efforts will be put into mechanism research and vaccine research and development, which can be helpful to deal with the epidemic.
Source: Medicine - Category: Internal Medicine Tags: Research Article: Systematic Review and Meta-Analysis Source Type: research
ConclusionsWe need to pay more attention to public psychological stress, especially among young people, as they are likely to experience anxiety, depression, and psychological abnormalities. Different psychological interventions could be formulated according to the psychological characteristics of different gender and age groups. The majority of respondents followed specific behaviors required by the authorities, but it will take time to observe the effects of these behaviors on the epidemic.
Source: Infectious Diseases of Poverty - Category: Infectious Diseases Source Type: research
Conclusions: To the best of our knowledge, this is the first report focusing on COVID-19 infection in a lymphoma patient undergoing intensive immunochemotherapy. For those patients being treated with immunochemotherapy in epidemic areas, a reduced dose intensity of intensive chemotherapy should be considered, and the effect of immunotherapies such as rituximab on COVID-19 infection should be considered. The impacts of anti-cancer treatment on COVID-19 infection need to be explored further.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
I live-tweeted a fascinating and perhaps rather depressing meeting with William Haseltine via a Reuters Newsmaker Broadcast. His talk was upbeat but the message does not offer a positive outlook unless we can collaborate internationally to identify, trace, and isolate and go back to early antivirals to treat people urgently. A vaccine will probably never be found, we must stay on top of this virus when we get communities under control. Moreover, we must recognise that another emergent pathogen could appear any time. These are essentially my notes from Haseltines’s talk. Might we ever achieve herd immunity? There is n...
Source: David Bradley Sciencebase - Songs, Snaps, Science - Category: Science Authors: Tags: Sciencebase Source Type: blogs
I live-tweeted a fascinating and perhaps rather depressing meeting with William Haseltine via a Reuters Newsmaker Broadcast. His talk was upbeat but the message does not offer a positive outlook unless we can collaborate internationally to identify, trace, and isolate and go back to early antivirals to treat people urgently. A vaccine will probably never be found, we must stay on top of this virus when we get communities under control. Moreover, we must recognise that another emergent pathogen could appear any time. These are essentially my notes from Haseltines’s talk. Might we ever achieve herd immunity? There is n...
Source: David Bradley Sciencebase - Songs, Snaps, Science - Category: Science Authors: Tags: Sciencebase Source Type: blogs
AbstractAn outbreak of novel coronavirus pneumonia occurred worldwide since December 2019, which had been named COVID-19 subsequently. It is extremely transmissive that infection in pregnant women were unavoidable. The delivery process will produce large amount of contaminated media, leaving a challenge for medical personnel to ensure both the safety of the mother and infant and good self-protection. Only rare cases of pregnant women with COVID-19 are available for reference. Here, we report a 30-year-old woman had reverse transcription polymerase chain reaction-confirmed COVID-19 at 36  weeks 2 days of gestation...
Source: Journal of Anesthesia - Category: Anesthesiology Source Type: research
Russian President Vladimir Putin eased the nationwide lockdown imposed on March 30 to stem the spread of the coronavirus, even as Russia becomes Europe’s new hotspot for the infection. With more than 250,000 cases as of May 15, Russia now has the second-highest number of confirmed COVID-19 cases in the world. In a televised address to the nation on May 11, Putin said that some sectors would return to work from the following day, though restrictions on large public events across the country would stay in place. Everyone is required to wear face masks and gloves in shops and on public transport. Still closed in Moscow ...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized COVID-19 Explainer feature Londontime Source Type: news
In December 2019, people in Wuhan, China began to contract pneumonia, and the cause was unknown. The condition was similar to viral pneumonia, as confirmed by clinical presentation. On January 7, 2020, it was confirmed that the cause of the pneumonia was a new coronavirus. Thereafter, this was named the 2019 novel coronavirus disease-COVID-19. Notably, COVID-19 induces mild symptoms that are similar to those induced by other respiratory infections. However, particularly, it affects older people with comorbidity and can result in fatal respiratory diseases (Chen et al., 2020).
Source: International Journal of Infectious Diseases - Category: Infectious Diseases Authors: Source Type: research
More News: China Health | Coronavirus | COVID-19 | Environmental Health | Epidemics | Epidemiology | International Medicine & Public Health | Outbreaks | Pneumonia