Using Sentinel Surveillance System to Monitor Seasonal and Novel H1N1 Influenza Infection in Houston, Texas: Outcome Analysis of 2008-2009 Flu Season.
The advent of the novel H1N1 virus prompted the Houston Department of Health and Human services (HDHHS) to use the existing sentinel surveillance system to effectively monitor the situation of novel H1N1 virus in the Houston metropolitan area. The objective of this study was to evaluate the demograp...
| Publicado en: | Journal of Community Health Vol. 36; no. 5; pp. 857 - 864 |
|---|---|
| Autores principales: | , , , , |
| Formato: | Artículo |
| Publicado: |
Springer Nature
Oct2011
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=65020926&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 65020926 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00945145 JCH jtl: Journal of Community Health issn: 00945145 maglogo: N pubinfo: dt: Oct2011 vid: 36 iid: 5 pid: 237 pub: Springer Nature artinfo: ui: 65020926 10.1007/s10900-011-9386-2 ppf: 857 ppct: 7 formats: fmt: @attributes: type: P size: 236KB tig: atl: Using Sentinel Surveillance System to Monitor Seasonal and Novel H1N1 Influenza Infection in Houston, Texas: Outcome Analysis of 2008-2009 Flu Season. aug: au: Khuwaja, Salma Mgbere, Osaro Awosika-Olumo, Adebowale Momin, Fayaz Ngo, Katherine affil: Bureau of Epidemiology, Houston Department of Health and Human Services (HDHHS), 8000 N. Stadium Drive Houston 77054 USA su: Texas Analysis of variance Public health surveillance Chi-squared test Probability theory Statistical sampling Statistics Data analysis Influenza A virus, H1N1 subtype Seasonal influenza Data analysis software Symptoms sug: subj: Analysis of variance Public health surveillance Texas Marketing Research and Public Opinion Polling Chi-squared test Probability theory Statistical sampling Statistics Data analysis Influenza A virus, H1N1 subtype Seasonal influenza Data analysis software Symptoms keyword: Houston Houston, Texas Influenza-like illness Novel H1N1 virus Sentinel surveillance Houston Houston, Texas Influenza-like illness Novel H1N1 virus Sentinel surveillance ab: The advent of the novel H1N1 virus prompted the Houston Department of Health and Human services (HDHHS) to use the existing sentinel surveillance system to effectively monitor the situation of novel H1N1 virus in the Houston metropolitan area. The objective of this study was to evaluate the demographic characteristics and common symptoms associated with confirmed cases of seasonal influenza and Novel H1N1 virus reported to HDHHS between October 2008 and October 2009. A total of 30 providers were randomly selected using the probability proportional to size (PPS) sampling technique to participate in a sentinel surveillance system. The system was used to effectively monitor both seasonal and novel H1N1 virus in the Houston metropolitan area. These providers collected and submitted specimens for testing at HDHHS laboratory from patients with influenza-like illness (ILI) symptoms who visited their clinics during the period, October 2008 and October 2009. These data formed the basis of the current study. Data obtained were subjected to both descriptive and inferential statistical analyses using SAS software version 9.1.3. Overall a total of 1,122 ILI cases were reported to HDHHS by sentinel providers and tested by HDHHS laboratory. Of this number 296 (67.5%) specimens tested positive for influenza A; 140 (32.0%) for influenza B, and 2 (0.46%) for influenza A/B. Two hundred and fifty-nine (59%) were confirmed cases of seasonal influenza and 179 (41%) were novel H1N1 subtype, respectively. The median ages for seasonal influenza and novel H1N1 virus were 7 and 8 years, with majority of the cases reported among children of age 5-9 years. Fever was the most common symptom reported among patients with seasonal flu and novel H1N1 virus, followed by cough. Twenty-three percent (23%) of patients who were vaccinated against seasonal flu prior to the epidemic were infected with seasonal flu virus. The sentinel surveillance system provided timely data on the circulating ILI that assisted in making decisions regarding response activities for both seasonal and novel H1N1 influenza. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|