[Epidemics in the news in Portugal: cholera, plague, typhus, influenza and smallpox, 1854-1918].

In severe health crisis like those of 1854-1856, 1899 and 1918, especially in Porto, where cholera morbus, the bubonic plague, typhus fever, pneumonic influenza and smallpox killed high percentages of the population, the images of the epidemics in the press enable us to identify the scientific knowledge in a country considered peripheral, but which had studies and personnel specialized at the most advanced levels for the time. A database of 6,700 news items and announcements reveals the medical and pharmaceutical knowledge of the second half of the nineteenth and early twentieth centuries, the way it was transmitted and disclosed to the public and the solutions offered by the health authorities. Hygiene was consistently highlighted in the news and announcements.