Pacheco's disease it is named after the Brazilian veterinarian, Genesio Pacheco, who first came across the disease in 1929, in an outbreak affecting the turquoise-fronted amazon parrot, "Amazona aestiva". Initially, Pacheco's disease was thought to be a manifestation of avian psittacosis. The causative agent of the disease, a herpesvirus, was not identified until 1975. Pacheco's disease Pacheco's disease is an acute and often lethal infectious disease in psittacine birds. The disease is caused by a species of herpesvirus, Psittacid alphaherpesvirus 1 (PsHV-1), which consists of four genotypes. Birds which do not succumb to Pacheco's disease after infection with the virus become asymptomatic
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