History of smallpox centuries, the WHO certified the global eradication of smallpox in December 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared eradicated in 2011. It has been suggested that smallpox was a major component of the Plague of Athens that occurred in 430 BCE, during the Peloponnesian Wars, and was described by Thucydides. Galen's description of the Antonine Plague, which swept through the Roman Empire in 165–180, indicates that it was probably caused by smallpox. Returning soldiers brought the disease home with them to Syria and Italy, where it raged for
Extinction (neurology) state of a vascular disease. The acute state of the vascular disease usually leads to neglect which then in turn leads to the auditory extinction. The number of lesions causes an additive effect when occurring in combination with a recent damage. When it comes to treating and recognizing the occurrence of auditory extinction most sound can still be perceived with the other ear. The nature of sound, which possess directionality but still fills space, makes it more amenable to misattribution of source location. This is called the ‘prior entry’ effect. This is when a stimulus occurring at an attended location