where did the black death start and how did it spread
Black Death The Black Death is thought to have originated in the dry plains of Central Asia, where it then travelled along the Silk Road, reaching Crimea by 1343.[5] From there, it was most likely carried by Oriental rat fleas living on the black rats that were regular passengers on merchant ships, spreading throughout the Mediterranean and Europe.
Bubonic plague Prevention is through public health measures such as not handling dead animals in areas where plague is common.[1] Vaccines have not been found to be very useful for plague prevention.[1] Several antibiotics are effective for treatment including streptomycin, gentamicin, and doxycycline.[3][4] Without treatment it results in the death of 30% to 90% of those infected.[1][3] Death, if it occurs, is typically within ten days.[6] With treatment the risk of death is around 10%.[3] Globally there are about 650 documented cases a year which result in ~120 deaths.[1] The disease is most common in Africa.[1]
List of former European colonies Britain and United Kingdom
Dust Bowl This catastrophe intensified the economic impact of the Great Depression in the region.