Photo credit: WHO, D Pibum
Source: WHO 1988, Smallpox and Its Eradication
Ethiopia
1974
Roads were few and sometimes impassable, but the bridge shown here was crossed 4 times in 1974.
Photo credit: WHO, D Pibum
Source: WHO 1988, Smallpox and Its Eradication
Ethiopia
1974
Roads were few and sometimes impassable, but the bridge shown here was crossed 4 times in 1974.