The Coronavirus Disease 2019 (COVID-19) pandemic has led individuals to experience psychological distress as a result of their perceptions of the disease. This study aimed to determine the factors associated with these perceptions, the sources of information about the pandemic that may have contributed to them, and the level anxiety felt by adults living in Turkey in the initial phase of COVID-19, with a primary focus on generalized anxiety. The study had a web-based cross-sectional survey design 482 (327 female, 155 male) Turkish responders completed the Generalized Anxiety Disorder-7 (GAD-7) self-reported questionnaire, a measurement tool related to their perceptions of COVID-19 and questions about their sources of information about the pandemic between 3 and 19 April, 2020. Women experienced higher levels of anxiety than men. Those with severe symptoms of generalized anxiety disorder (GAD) believed that the COVID-19 pandemic would have a long duration, stated that the risk of transmission had had serious effects on their lives, felt little personal control with regard to the risk of transmission and did not believe that existing treatments would be effective against the risk of transmission. Moreover, those with severe GAD symptoms had little comprehension of how the disease was transmitted. Finally, it was concluded that those with severe GAD symptoms used the internet and, in particular, Instagram as their main sources of information about the pandemic. Although the anxiety levels were found to be moderate in general, women were more vulnerable. Using the internet and, in particular, Instagram as sources of information affected individuals' perceptions of the pandemic, and led to psychological distress.