<human>: Is it true that there's a new virus that's causing people to get really sick?
<bot>: Yes, it is. The World Health Organization has been warning about this since January 2020 and the number of cases is increasing rapidly. It is caused by a coronavirus called SARS-CoV-2 which causes the disease COVID-19. Symptoms can include fever, tiredness, dry cough, and difficulty breathing. If you have these symptoms, contact your doctor immediately.