'Keep flu to yourself' - poster informing the public about flu, United Kingdom, 1969-1987
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Notice, usually printed on paper, intended to be posted to advertise, promote, or publicise an activity, cause, product, or service; also, decorative, mass-produced prints intended for hanging.
A tiny particle made up of DNA/RNA and a protein coat. Viruses infect animals, plants, and micro-organisms and cause many diseases, including the common cold, influenza, measles, chickenpox, AIDS, polio and rabies. Many viral diseases can be controlled by means of vaccines.
A highly contagious viral infection that affects the respiratory system. Common symptoms of the disease are chills and fever, sore throat, muscle pains, severe headache, coughing, weakness and general discomfort. In more serious cases, influenza may cause pneumonia, which can be fatal.
An alteration in the normal condition of a body part, organ or system of an individual, interrupting the performance of vital functions. This can result from various causes. Each disease is characterized by an identifiable group of symptoms.