Measles surveillance: Nicaragua.
D000569:Americas; D002489:Central America; D003625:Data Collection; D003906:Developing Countries; D004194:Disease; D004813:Epidemiology; D005069:Evaluation Studies as Topic; D006262:Health; D007843:Latin America; D008457:Measles; D009527:Nicaragua; D009656:North America; D011634:Public Health; D012106:Research; D012107:Research Design; D014777:Virus Diseases
Americas; Central America; Data Collection; Data Reporting; Developing Countries; Diseases; Epidemiology; Evaluation; Health; Latin America; Measles; Monitoring; Nicaragua; North America; Public Health; Research Methodology; Viral Diseases