PUBLIC health: influenza, smallpox, vaccination requirements for travellers, poliomyelitis, Ministry's statement on tuberculosis, the health of London, clean food.
D003141:Communicable Diseases; D005502:Food; D006801:Humans; D007251:Influenza, Human; D008131:London; D011051:Poliomyelitis; D011634:Public Health; D012899:Smallpox; D014195:Travel; D014376:Tuberculosis; D014611:Vaccination; D012901:Variola virus