Local health authorities in Beijing confirmed two pneumonic plague cases on Tuesday. The patients are from XiXilinGol League, in the Inner Mongolia autonomous region, and have received proper medical treatment in medical institutions in Beijing's Chaoyang district, and disease control and prevention measures have been carried out, the district health commission said Tuesday.
Plague can transmit through air and is considered as a most dangerous infectious disease by China's health authorities. The death rate from plague is almost 100 percent if not treated quickly. Patients can display symptoms such as high fever, severe headache and fall into unconsciousness.