Eradication campaigns become more difficult the closer they are to success o Example:Measles in Ireland Measles vaccine introduced in 1985 Childhood measles caseload fell from 100,000 in 1985 to 135 in 1991 With measles no longer a major threat,vaccination rates declined By 1993,the disease rebounded and 4,o00 new cases were reported Example:Nicaraguan conditional cash transfers In the early 2oo0s,still high prevalence of TB,measles,polio Nicaraguan government instituted a conditional cash transfer program-citizens would receive cash payments if they agreed to receive a free vaccine This drove the price of the vaccine below zero,and vaccination rates soared above 95%for each disease Bhattacharya,Hyde and Tu-HealthEconomics Bhattacharya, Hyde and Tu – Health Economics Eradication campaigns become more difficult the closer they are to success  Example: Measles in Ireland  Measles vaccine introduced in 1985  Childhood measles caseload fell from 100,000 in 1985 to 135 in 1991  With measles no longer a major threat, vaccination rates declined  By 1993, the disease rebounded and 4,000 new cases were reported  Example: Nicaraguan conditional cash transfers  In the early 2000s, still high prevalence of TB, measles, polio  Nicaraguan government instituted a conditional cash transfer program – citizens would receive cash payments if they agreed to receive a free vaccine  This drove the price of the vaccine below zero, and vaccination rates soared above 95% for each disease