Psittacosis Psittacosis Psittacosis—also known as parrot fever, and ornithosis—is a zoonotic infectious disease caused by a bacterium called "Chlamydophila psittaci" and contracted from infected parrots, such as macaws, cockatiels, and budgerigars, and pigeons, sparrows, ducks, hens, gulls and many other species of birds. The incidence of infection in canaries and finches is believed to be lower than in psittacine birds. In certain contexts, the word is used when the disease is carried by any species of birds belonging to the family Psittacidae, whereas "ornithosis" is used when other birds carry the disease. In humans, after an incubation period of 5–19 days,
Contagious shooting Contagious shooting A contagious shooting is a sociological phenomenon observed in military and police personnel, in which one person firing on a target can induce others to begin shooting. Often the subsequent shooters will not know why they are firing, unless they are infantrymen, in which case they are expected to do so. For instance, if someone was a member of a fire team following the point man and he suddenly begins firing his weapon, there is a good chance that their element is in contact with the enemy. Prerequisites for a sworn peace officer regarding the discharge of a