The Chinese ophthalmologist who sounded the alarm of the coronavirus outbreak has died after contracting the virus himself.

Dr. Li Wenliang succumbed to the virus after weeks in the hospital. He was reprimanded by Chinese authorities for “spreading rumors online” and “severely disrupting social order” after texts he sent to fellow medical school classmates warning them of the potential outbreak went viral on the Internet. Li’s texts advised that the Wuhan hospital where he worked had seen several cases of a SARS-like illness in patients that had visited a seafood market in the city.

Close to 2,500 medical workers are already infected with the virus and eight deaths.

So far, the outbreak has killed 1,770 people and infected another 70,000 in mainland China and has spread to over 30 other countries with confirmed cases with what the World Health Organization has named COVID-19.

Stay current on the latest Coronavirus developments on The Center for Disease Control’s COVID-19 site.