Medical workers select medicinal materials at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

Medical workers compound Tibetan medicine at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

A medical worker packs Tibetan medicines at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

Medical workers compound Tibetan medicine at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

Medical workers smash medicinal materials at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

A medical worker chooses medicinal materials at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)

Medical workers compound Tibetan medicine at the provincial hospital of Tibetan medicine in Xining, northwest China's Qinghai Province, Feb. 26, 2020. Tibetan medicine is used to help fight the coronavirus in northwest China's Qinghai Province. The provincial hospital of Tibetan medicine has produced a batch of anti-virus medications featuring Tibetan medicine. Local Tibetan medicine hospitals also produced medications to prevent virus infection and distributed them to the public for free. (Xinhua/Zhang Long)