00:01
Hello students, in this question we have been told that smallpox is a virus that causes a rash that then turns into a painful blister.
00:21
The last known case of smallpox was in 1977.
00:26
So what is the best explanation for the eradication of smallpox? so the first thing is vaccination.
00:42
Vaccination was developed, a highly effective vaccine was developed against smallpox.
00:52
That was a major factor in its eradication.
00:55
The vaccine, it was developed in the late 18th century and was widely used in the 20th century.
01:10
So this is the major contributor for the eradication.
01:14
Coming to the second part, that is global cooperation.
01:21
The world health organization launched a global campaign to eradicate smallpox in 1967.
01:32
This came into effect because of the efforts by government, governments, health organization and volunteers and the campaign became very successful.
01:47
Thirdly is the surveillance and containment...