An estimate of the incidence of influenza-like illness during the influenza pandemic of 2009
| Autor: | Juan B, Bellido-Blasco, Francisco, Pardo-Serrano, Isabel, Ballester-Rodríguez, Alberto, Arnedo-Pena, M Dolores, Tirado-Balaguer, M Ángeles, Romeu-García, Ester, Silvestre-Silvestre, Noemí, Meseguer-Ferrer, Concha, Herrero-Carot, Joan A, Caylà-Buqueres |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Adolescent Databases Factual Young Adult Influenza Human Prevalence Electronic Health Records Humans Child Disease Notification Pandemics Respiratory Tract Infections Aged Primary Health Care Clinical Laboratory Techniques Data Collection Incidence Infant Newborn Infant Middle Aged Patient Acceptance of Health Care Spain Child Preschool Population Surveillance Female Symptom Assessment |
| Zdroj: | Archivos de bronconeumologia. 51(8) |
| ISSN: | 1579-2129 |
| Popis: | The influenza pandemic of 2009 had a great social impact. Many health resources were devoted to the care, prevention and surveillance of this disease. Epidemiological surveillance is based on the reporting of cases of influenza-like illness (ILI) and confirmed influenza cases. The objective was to estimate the true incidence of ILI during the influenza pandemic of 2009.The capture-recapture method was applied during the month of highest influenza incidence in Castellón. Two notification systems were used: (i)electronic reporting of Notifiable Diseases (ND), and (ii)laboratory-based (LAB) data collection. Estimates were made by stratifying by age group and week. Independence coefficients were calculated for those strata.No dependence was found between stratification variables and the reporting system. A total of 7,181 ND cases and 524 LAB cases were identified, of which 211 were recorded in both systems. The estimated total of cases was 17,785 in a single month. In the study period, almost 4% of people in the area suffered flu symptoms (cumulative incidence), with 1% being affected each day (daily prevalence). The sensitivity of the ND system was 40%, i.e., the percentage of patients seeking primary care.To obtain an estimate of the actual incidence of influenza-like illness in the population during a pandemic period, the number of medical consultations should be multiplied by a factor of 2.5. This factor is lower than that estimated for periods without pandemic alert. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect