Health officials say they are using both traditional Chinese and western medicines to treat patients infected by the coronavirus. In a press conference on Friday, they said more than 2,000 practitioners of traditional Chinese medicine are now in Hubei province. Local health officials also said over 70 percent of confirmed patients in the province were receiving traditional treatment. They say traditional Chinese medicine can prevent the disease from getting worse, boost the immune system and alleviate symptoms like coughing, chest congestion, and improve lung function.