It is unknown how many people may die or get infected by the 2019-nCoV disease and how long the outbreak lasts (
6). Individuals who have 2019-nCoV may experience a range of psychological disorders even after they have been cured (
7,
8). There are no therapeutic drugs and vaccines for the current novel coronavirus. This uncertainty and unpredictability can cause fear and disappointment. The fear of catching the disease and resentment regarding disclosure and loss of the loved ones due to 2019-nCoV may lead to emotional responses (
9). The rapid spread of outbreaks and the fear of death cause anxiety and psychological disorders, including depression, posttraumatic stress, and substance dependence (
10-
12). As reported in several studies, posttraumatic stress increases in populations exposed to disasters (
12). The psychological disorders due to disasters worsen by isolation, loneliness, helplessness, and loss of face-to-face connections (
13,
14). Being in quarantine due to infection gives the feeling of shame and guilt (
5). The uncertainty about the isolation period increases the non-compliance and can demoralize individuals (
15). Prolonged isolation causes more mental health problems than short-time isolation (
16,
17). Many people experience the fear of unemployment due to the economic downturn of the outbreak (
18).
The implementation of precautionary measures associated with personal and social controlling behaviors such as isolation, staying home, and cleaning surfaces resulted in severe anxiety among Wuhan (32.7 %) and Shanghai (78.6 %) citizens during the early stages of the 2019-nCoV outbreak (
19). Of 1,715 respondents from Hong Kong, 97% were worried, and 98% (slightly: 42%, greatly: 56%) stated that their routine lives were disrupted due to the 2019-nCoV outbreak (
20). In another study on 2019-nCoV, from 1,210 Chinese respondents, 53.8%, 16.5%, 28.8%, and 8.1% were rated at the moderate to severe levels of psychological impacts, depressive symptoms, anxiety symptoms, and stress, respectively (
21). Sleep, work, and other activities as routines are hindered or interrupted, which exacerbate the psychological and mental health consequences (
22-
24). In the 2019-nCoV outbreak, of 1,210 Chinese respondents, 84.7%, 75.2%, and 75.1% spent almost all their time at their home (20 - 24 h), were worried about their family health and were satisfied with the related disseminated information, respectively (
21). The feelings like cooperation and being part of a big group can result in the selfless contribution of people (
25). For efficient cooperation, the role of individuals and groups of individuals and punishments of disobedience, such as social disapproval, should be clearly specified (
26-
28).