Detection of COVID 19 using X-ray Images with Fine-tuned Transfer Learning

Recently, COVID-19 infection has been spread to a wider human population worldwide and deemed a pandemic for its rapidity. The absence of medicine or immunization for the "COVID-19" illness, along with the requirement for early discovery and isolation of affected persons, is critical in reducing the risk of infection in healthy population. Blood specimens, or "RT-PCR" are primary screening technique for "COVID-19". However, average positive "RT-PCR" is expected as 30 to 60%, leading to undiscovered infections and potentially endangering a broad population of healthy persons with infectious symptoms. With the quick examination approach, chest radiography as a common approach for identifying respiratory disorders is straightforward to execute. A board-certified radiologist indicated the presence of disease in these radiographs. Four transfer learning techniques to COVID-19 illness identification were trained using 2,000 X-rays: VGG-16, GoogleNet, ResNet, and SqueezeNet. The result of the experimental assessment shows that the VGG-16 network finetuned with Keras achieved sensitivity of 100% with specificity of 98.5% and accuracy of approximately 99.3%. © 2023 Scientific Publishers. All rights reserved.

Novel Multi-featured Disinfection (MFD) System for COVID-19 and Related Pandemics

Society is under tremendous tension and pressure due to the Coronavirus (COVID-19) pandemic. Coronavirus pandemic-2019 is a critical health emergency with respect to the international concern. Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-1) disease first came in 2002 and then Middle East Respiratory Syndrome Coronavirus (MERS-CoV) affects us in 2012. SARS-CoV-2 is the third coronavirus to emerge in the past two decades, which are acting as a serious warning to humans. These pandemic presents major challenges to scientist and international medical agencies to save the earth by this global life-threatening pandemic. Fighting with these major issues, scientists and doctors pointed out the solutions for COVID and Related pandemics, in which the most populated solution, such as ultraviolet (UV)-based disinfection systems. This article is presenting a unique technology for the COVID-19 infected surfaces to either sides. The proposed research is the providing the solutions with the integration/merging of two different technologies in the portable form to provide a unique disinfection system to disinfect the infected/suspected surfaces by ‘Coronavirus disease’ from top and bottom side by exposing the specified samples like currencies/hand held devices/mobile phones/various types of cards, etc. According to the various literatures, ultraviolet-C light as well as 650 nm laser light has the power to destroy the COVID-19 and related viruses. The proposed system is developed to disinfect the above-mentioned items surfaces from COVID-19 like issues and has the ability to disinfect the items in few second (within 3–5 s). The proposed system has the capability to serve the nation at different level as it may be designed and developed in different sizes as per the application. This integrated technology can serve the society in most of the applications like, the major field for disinfection is food and agriculture sectors. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.