Table 1.
Continent | 1959 | 1960 | 1961 |
---|---|---|---|
Africa | 15,781 | 16,127 | 24,182 |
America | 4,899 | 5,531 | 8,168 |
Asia | 60,749 | 39,251 | 52,217 |
Europe | 15 | 47 | 27 |
Source: ‘Development of the smallpox eradication programme’, WHO Chronicle, 1967, 21 (9): 389—93, on p. 389.