Eradication of which disease is often cited as a triumph of international cooperation among many countries?

Eradication of which disease is often cited as a triumph of international cooperation among many countries?

• A. Cholera
• B. Influenza
• C. Ebola
• D. Smallpox

Answer: (D)

Eradication means that a disease is permanently eliminated worldwide, with zero cases and zero ongoing control measures required. Smallpox is cited as a landmark example of international cooperation because achieving eradication required seamless coordination across many countries, all levels of public health, and sustained political and financial commitment under global leadership. Key elements included a highly effective vaccine, a practical vaccination strategy (including ring vaccination to contain spread), and a robust surveillance and certification process that confirmed transmission had ended globally. The disease had no animal reservoir, which made complete interruption of transmission feasible, and the last natural case occurred in 1977, with global certification of eradication in 1980. The other diseases don’t fit as eradication successes for several reasons. Cholera persists in many regions where sanitation and clean water are challenging, so while vaccines and treatments help control outbreaks, global eradication hasn’t occurred. Influenza continually evolves and involves animal reservoirs, making it highly unlikely to eradicate; instead, control is focused on vaccination and outbreak response. Ebola has caused deadly outbreaks but remains limited to certain regions and animal reservoirs exist, so eradication across the world isn’t feasible.

Eradication means that a disease is permanently eliminated worldwide, with zero cases and zero ongoing control measures required. Smallpox is cited as a landmark example of international cooperation because achieving eradication required seamless coordination across many countries, all levels of public health, and sustained political and financial commitment under global leadership. Key elements included a highly effective vaccine, a practical vaccination strategy (including ring vaccination to contain spread), and a robust surveillance and certification process that confirmed transmission had ended globally. The disease had no animal reservoir, which made complete interruption of transmission feasible, and the last natural case occurred in 1977, with global certification of eradication in 1980.

The other diseases don’t fit as eradication successes for several reasons. Cholera persists in many regions where sanitation and clean water are challenging, so while vaccines and treatments help control outbreaks, global eradication hasn’t occurred. Influenza continually evolves and involves animal reservoirs, making it highly unlikely to eradicate; instead, control is focused on vaccination and outbreak response. Ebola has caused deadly outbreaks but remains limited to certain regions and animal reservoirs exist, so eradication across the world isn’t feasible.