15 Facts About Smallpox eradication

Smallpox eradication was an infectious disease caused by one of two virus variants, Variola major and Variola minor.

Smallpox eradication is one of two infectious diseases to have been eradicated, the other being rinderpest in 2011.

Smallpox eradication virus tended to attack skin cells, causing the characteristic pimples, or macules, associated with the disease.

Smallpox eradication was caused by infection with Variola virus, which belongs to the family Poxviridae, subfamily Chordopoxvirinae, and genus Orthopoxvirus.

Smallpox eradication was not notably infectious in the prodromal period and viral shedding was usually delayed until the appearance of the rash, which was often accompanied by lesions in the mouth and pharynx.

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Smallpox eradication was highly contagious, but generally spread more slowly and less widely than some other viral diseases, perhaps because transmission required close contact and occurred after the onset of the rash.

Smallpox eradication was not known to be transmitted by insects or animals and there was no asymptomatic carrier state.

Smallpox eradication vaccination provides a high level of immunity for three to five years and decreasing immunity thereafter.

Smallpox eradication was probably introduced into China during the 1st century CE from the southwest, and in the 6th century was carried from China to Japan.

Smallpox eradication is not clearly described in either the Old or New Testaments of the Bible or in the literature of the Greeks or Romans.

Smallpox eradication was introduced into the Caribbean island of Hispaniola in 1507, and into the mainland in 1520, when Spanish settlers from Hispaniola arrived in Mexico, inadvertently carrying smallpox with them.

An early mention of the possibility of smallpox's eradication was made in reference to the work of Johnnie Notions, a self-taught inoculator from Shetland, Scotland.

Smallpox eradication's method involved exposing smallpox pus to peat smoke, burying it in the ground with camphor for up to 8 years, and then inserting the matter into a person's skin using a knife, and covering the incision with a cabbage leaf.

Smallpox eradication feared for the safety of her son, Paul, so much that she made sure that large crowds were kept at bay and sought to isolate him.

Smallpox eradication later had photographs retouched to make his pockmarks less apparent.