tetano
Editor, Senior Moderator
Pediatr Infect Dis J. 2015 Dec 9. [Epub ahead of print]
[h=1]Influenza Vaccine is Protective Against Laboratory-Confirmed Influenza in Obese Children.[/h] Smit MA[SUP]1[/SUP], Wang HL, Kim E, Barragan N, Aldrovandi GM, Nelson El Amin A, Mascola L, Pannaraj PS.
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Obesity emerged as a novel risk factor for severe disease during the 2009 H1N1 influenza pandemic. Murine studies indicate that obesity is associated with ineffective response to influenza vaccine, but few human studies exist. We aimed to determine if influenza vaccine is protective against laboratory-confirmed influenza in obese children.
[h=4]METHODS:[/h] Body mass index (BMI), vaccination status, and laboratory-confirmed influenza data were analyzed from a previously conducted prospective study in which active surveillance for influenza-like illness (ILI) was conducted in eight elementary schools in Los Angeles County during the 2010-2011 influenza season. Polymerase-chain reaction (PCR) was performed on combined nose/throat swabs collected from children with ILI at presentation to the school nurse or during absenteeism.
[h=4]RESULTS:[/h] Of 4,260 children with height/weight data, 1,191 (28.0%) were obese (BMI ≥95th percentile). Respiratory specimens were obtained from 858 (20.1%) children. Unvaccinated obese compared with vaccinated obese children acquired three times more PCR-confirmed influenza (62 vs. 17 per 1000 children, p=0.003) and missed more school days (4.6 vs. 3.2 per 100 school days, p<0.001) during influenza season. Obese children with PCR-confirmed influenza were more likely to present with cough (86.2 vs. 72.4%, p=0.030) and missed more school per episode (2.4 vs.1.9 days, p=0.023) compared with non-obese children. Among vaccinated children, rates of PCR-confirmed influenza were similar in obese and non-obese children (17 vs. 20 per 1000 children, p=0.77).
[h=4]CONCLUSIONS:[/h] Obese children with PCR-confirmed influenza suffered from more cough and missed more school days than their non-obese peers. Influenza vaccination protected obese children against PCR-proven influenza illness.
PMID: 26658380 [PubMed - as supplied by publisher]
[h=1]Influenza Vaccine is Protective Against Laboratory-Confirmed Influenza in Obese Children.[/h] Smit MA[SUP]1[/SUP], Wang HL, Kim E, Barragan N, Aldrovandi GM, Nelson El Amin A, Mascola L, Pannaraj PS.
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Obesity emerged as a novel risk factor for severe disease during the 2009 H1N1 influenza pandemic. Murine studies indicate that obesity is associated with ineffective response to influenza vaccine, but few human studies exist. We aimed to determine if influenza vaccine is protective against laboratory-confirmed influenza in obese children.
[h=4]METHODS:[/h] Body mass index (BMI), vaccination status, and laboratory-confirmed influenza data were analyzed from a previously conducted prospective study in which active surveillance for influenza-like illness (ILI) was conducted in eight elementary schools in Los Angeles County during the 2010-2011 influenza season. Polymerase-chain reaction (PCR) was performed on combined nose/throat swabs collected from children with ILI at presentation to the school nurse or during absenteeism.
[h=4]RESULTS:[/h] Of 4,260 children with height/weight data, 1,191 (28.0%) were obese (BMI ≥95th percentile). Respiratory specimens were obtained from 858 (20.1%) children. Unvaccinated obese compared with vaccinated obese children acquired three times more PCR-confirmed influenza (62 vs. 17 per 1000 children, p=0.003) and missed more school days (4.6 vs. 3.2 per 100 school days, p<0.001) during influenza season. Obese children with PCR-confirmed influenza were more likely to present with cough (86.2 vs. 72.4%, p=0.030) and missed more school per episode (2.4 vs.1.9 days, p=0.023) compared with non-obese children. Among vaccinated children, rates of PCR-confirmed influenza were similar in obese and non-obese children (17 vs. 20 per 1000 children, p=0.77).
[h=4]CONCLUSIONS:[/h] Obese children with PCR-confirmed influenza suffered from more cough and missed more school days than their non-obese peers. Influenza vaccination protected obese children against PCR-proven influenza illness.
PMID: 26658380 [PubMed - as supplied by publisher]