What does Pope Francis having "double pneumonia" mean? What should you look for in the elderly? How can you avoid getting pneumonia?

Pope Francis was in critical condition Saturday after he suffered a long asthmatic respiratory crisis that required high flows of oxygen, the Vatican said. The 88-year-old Francis, who has been hospitalized for a week with a complex lung infection,

The Vatican says Pope Francis had a "good rest" overnight as he is being treated for double pneumonia in a Rome hospital. The Vatican said the 88-year-old pontiff is expected to stay in the hospital at least another week,