A Chinese doctor who tried to warn the public about the Wuhan coronavirus has died of the disease. Li Wenliang told colleagues about the presence of the virus all the way back in December but was accused of rumor-mongering by Wuhan police after his messages were posted on social media. Li is being hailed as a hero, and his death has sparked anger among Chinese citizens, who say they feel like they were lied to and Li was unfairly attacked for speaking out. Li’s death comes as China prepares to ramp up its response to the virus, which has topped 30,000 cases. Officials said every household in Wuhan will be checked for people with symptoms, and anyone affected will be sent to one of more than 130 quarantine centers in the city.