Psittacosis known serovars. All should be considered to be readily transmissible to humans. "C. psittaci" serovar A is endemic among psittacine birds and has caused sporadic zoonotic disease in humans, other mammals, and tortoises. Serovar B is endemic among pigeons, has been isolated from turkeys, and has also been identified as the cause of abortion in a dairy herd. Serovars C and D are occupational hazards for slaughterhouse workers and for people in contact with birds. Serovar E isolates (known as Cal-10, MP, or MN) have been obtained from a variety of avian hosts worldwide, and although they were associated with
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