You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Coronaviruses are recognized by club-shaped surface projections that are 20 nm long and resemble solar coronas. These viruses are characterized by their ability to and explain in detail?
Coronaviruses, discovered in 1965, are thought to be a major agent of the common cold, especially in older children and adults. The virion is known to contain RNA, but other elements of its structure are unclear. At 34degC, viral multiplication is profuse; however, infectivity is greatly reduced at higher temperatures or following extended incubation Reference: Ananthanarayan and Paniker&;s Textbook of Microbiology Tenth edition