Hillary Clinton embraced a young child after leaving her daughter’s apartment – despite suffering from pneumonia.
The Democratic presidential candidate was diagnosed with the illness after she collapsed at an ‘incredibly stifling’ 9/11 ceremony in New York.
Pneumonia is a contagious illness that is spread from person-to-person when small droplets of water that contain the bacteria get into the air and people breathe them in.
Those infected usually spread the disease by sneezing while in close contact with others, who then breathe in the bacteria, according to the Centers for Disease Control and Prevention.
William Schaffner, an infectious disease expert at Vanderbilt University, said: ‘Candidates are constantly out in enclosed spaces, face to face with myriads of people. It’s an ideal opportunity for the transmission of a respiratory virus.’