The initial problem the WHO team faced was inadequate reporting of smallpox cases .
In 1967 , the World Health Organization intensified the global smallpox eradication by contributing $2.4 million annually to the effort and adopted a new disease surveillance method .
The initial problem the World Health Organization team faced was inadequate reporting of smallpox cases .
In 1967 , the World Health Organization intensified the global smallpox eradication by contributing $2.4 million annually to the effort and adopted a new disease surveillance method .