The Ring Method of Controlling Smallpox

Health officials quarantined anyone who contracted smallpox and used extensive contact tracing to determine who else might have been exposed. They vaccinated their immediate families and the surrounding communities. This became known as the ring method, basically making a ring of vaccinated people around each active smallpox case so that the disease just could not spread. Using this method, pakistan saw its last reported case of small pox in october of 19 74. N napal in april of 1975, india in may of 19 75, and bangladesh inOctober of 19 75. Unfortunately, although ethiopia's last case of smallpox was reported in august of 19 76, by that