Adenoviruses, unlike the flu, are not seasonal and can cause illness throughout the year. Pinkeye (conjunctivitis) is another symptom that can result from an adenovirus infection , according to the US Centers for Disease Control and Prevention. Some people will develop pneumonia, an infection of the lungs, as a consequence of an adenovirus infection, Schaffner said. That said, most adenovirus infections are mild, with symptoms usually lasting about 10 days, according to the CDC. Adenovirus infections "usually occur sporadically -- here a case, there a case -- so outbreaks are pretty rare," Schaffner said.

Source: CNN January 30, 2018 08:37 UTC