Some citizens from several nations express their interest to the diagnosis, prediction and heal of the viral outbreak so that computer science researches has chosen to adopt artificial intelligence into the COVID-19 diagnosis to avail of its several advantages.
The authors of , developed an artificial intelligence method to to diagnose and predict COVID-19. This method is designated for the clinical use, so that ordinary citizens could not profit from it.
Also  proposed to use artificial intelligence and mobile-phone simultaneously in order to improve possible case identifications of COVID-19 in populations under quarantine .
More over in , artificial intelligence is coupled with an universal data sharing standards to manage and monitor urban health in smart cities, also it revealed the urgent need of the standardization of protocols for enhanced smart city communication to provide more possible cooperation in the case of disasters such as the recent novel pathogen COVID-19.
On the other hand,  developed an artificial intelligence based automated thoracic CT image analysis tools for detection, quantification, and tracking of COVID-19 positive patients, while  presented an artificial intelligence framework that reads the smartphone sensors’ signal measurement to predict the severity of the pneumonia and the result of the COVID-19. It is designed for the experts (doctor or radiologists).
Chatbots prove their potential to surmount obstacles such as geographical problems that could be effective in our confinement period to curb in-person medical consultations. Meanwhile, communication becomes a necessity to convince and reassure people of the current plight, that’s why, a Japanese based Bespoke company took advantage of artificial intelligence to launch an online chatbot called Bebot that provides up-to-date information of the COVID-19 and preventative actions with a possibility to check symptom .
Some interesting chatbots that were previously developed for the healthcare domain are also worth mentioning such as, SPeCECA  which is a smart pervasive chatbot for emergency case assistance and it is designated to interact with ordinary citizens to help them overcome an emergency situation by suggesting the accurate first aid actions to do. Additionally, Mandy  is a chatbot that communicates with normal people using natural language in order to provide an online healthcare suggestions. In , a chatbot is designed to mimic human interaction in a medical case. Its objective is to help ordinary people choose the most appropriate way to prevent a disease. Finally in , a mobile chatbot is developed for health care service. This chatbot is able to collect and detect user’s daily health data, in order to diagnose chronic diseases and give preventive information and fast treatment to accidents that may occur in everyday life.
The second part of our research is the impact of virtual assistants to overcome stressful situations. Besides, a messenger chatbot was built to recognize and manage emotional stress through predefined set of questions . Not far from this spirit,  presents chatbot for mental health counselling also using a set of questions to assess a user’s depression without a deep learning sentiment analysis. However, other works [17,15,20,29,28] have benefited from the power of deep learning sometimes to adjust the sentiment of the chatbot response, and sometimes to detect depression in text sequences. Another solution was developed as virtual reality application to support individuals in a stressful situation via communication with imaginary persons .
Table 1 shows a comparative analysis of some research works according to several criteria: Chatbot-based, Service Delivered, Smartness, Ubiquity, Beneficiary and Deep Learning Sentiment Analysis (DL Sentiment Analysis). From the research we have done, we can conclude that despite the several propositions of solutions to fight havoc and damage caused by the novel COVID-19, very few works managed to broach the subject of communication with ordinary citizens to fight the spread of epidemic and mainly to handle and avoid psychological troubles that may appear because of the ongoing world’s situation. That’s why, we seek a smart ubiquitous chatbot to ensure communication and interaction with ordinary people under quarantine using artificial intelligence and natural language processing (NLP) methods to assist them mainly to thwart the agony may be caused by COVID-19 during or after quarantine.