Practice guideline 3 World Health Organization 3 Delivery of health care 2 Developing countries 2 Noncommunicable diseases 2 Primary health care 2 health services - organization and administration 2 Case Management 1 Child 1 Children 1 Communicable Diseases 1 Critical Care 1 Developing Countries 1 Diagnosis 1 Diseases 1 Hospitals 1 Immunologic tests methods 1 Infant 1 Infection in children 1 Influenza, human diagnosis 1 Influenza, human epidemiology 1 Influenza, human virology 1 Malnutrition in children 1 Manual for the laboratory diagnosis and virological surveillance of influenza 1 Pandemics prevention and control 1 Patient Care 1 Pediatric intensive care 1 Serologic tests methods 1 Treatment 1 methods 1