Navigation Links
Lung Infection Up in Wake of Kids' Pneumonia Vaccine

Serious complication called empyema has doubled in young children, study finds

THURSDAY, Jan. 14 (HealthDay News) -- Since the PCV7 early childhood vaccine for bacterial pneumonia was introduced in the United States in 2000, the number of children hospitalized for pneumonia because of pneumococcus has decreased by 50 percent and bacterial pneumonias have decreased overall, new research shows.

But the scientists also found a 70 percent increase in the rate of a pneumonia complication called empyema, a serious and sometimes life-threatening infection in a cavity between the lung and chest wall.

This dramatic rise in the incidence of empyema may partly be because the PCV7 eliminates certain types of pneumococcus, which provides an opportunity for more virulent and antibiotic-resistant types of bacteria to take its place, said the researchers at the University of California, Davis, Children's Hospital.

The increase "may be occurring because the vaccine does not affect the types of microorganisms causing empyemas," study author Su-Ting T. Li, an assistant professor in the pediatrics department, said in a news release. "The vaccine may be getting rid of the pneumococcal bacteria that cause most pneumonia and other types of invasive pneumococcal disease. But the bacteria that are left over that [the vaccine] doesn't protect against that are more likely to cause empyema may increase because they don't have to compete against the other pneumococcal bacteria anymore."

For their study, Li and colleagues analyzed data from the national Kids' Inpatient Database for the years 1997, 2000, 2003 and 2006. From 1997 to 2006, the empyema-associated hospitalization rate for children aged 18 and younger increased 70 percent, from 2.2 per 100,000 to 3.7 per 100,000. The rate of complicated pneumonia -- which includes empyema, pleural effusion or bacterial pneumonia requiring a chest tube or decortication -- increased 45 percent between 1997 and 2006, when the rate was 5.5 per 100,000.

From 1997 to 2006, the rate of bacterial pneumonia hospitalizations decreased 13 percent, to 244.3 per 100,000, and the rate of invasive pneumococcal disease -- pneumonia, sepsis or meningitis caused by Streptococcus pneumoniae -- decreased 50 percent to 6.3 per 100,000.

The mean age of children hospitalized with empyema decreased from slightly more than seven in 1997 to just above six in 2006. Among children younger than 5, the rate of empyema increased 100 percent, from 3.8 per 100,000 in 1997 to 7.6 per 100,000 in 2006.

The study appears in the January issue of Pediatrics.

More information

The Nemours Foundation has more about children and pneumonia.

-- Robert Preidt

SOURCE: University of California, Davis Children's Hospital, news release, Jan. 11, 2010

Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. HPV vaccine does not appear to be effective for treating pre-existing HPV infection
2. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
3. Computers help chemists fight emerging infections
4. Infection contributes to the high rates of oropharyngeal cancers
5. Jefferson immunology researchers halt lethal rabies infection in brain
6. SIV infection of natural hosts provides new insights into HIV disease complexity
7. Novel virus detection identifies new viruses in study of respiratory infections and asthma attacks
8. Natural aorta grafts have few side effects for infection-prone patients
9. Common misdiagnosis: most women believe they have a yeast infection when they dont
10. Patient Safety Authority Board of Directors Names Infection Advisory Panel
11. FDA Approves LEVAQUIN(R) Short-Course Therapy for Treatment of Complicated Urinary Tract Infections and Acute Pyelonephritis
Post Your Comments:
(Date:11/30/2015)... ... November 30, 2015 , ... During the National Family Caregivers ... held two webinars on topics of ‘Medical and Palliative Care Decisions,’ and ‘Self-Care ... . , With a loved one's diagnosis of mesothelioma, the closest family ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... states in the U.S. require dental technicians to be certified or obtain continuing ... NADL created the “What’s In Your Mouth?” campaign to inform dentists that the ...
(Date:11/30/2015)... Minneapolis, MN (PRWEB) , ... November 30, 2015 ... ... launched at . The directory is specialized and only includes chiropractic ... is to find a competent and trustworthy alternative health practitioner when back pain ...
(Date:11/30/2015)... (PRWEB) , ... November 30, 2015 , ... ... the driverless vehicle experience this summer, ushering in a new era of publicly ... driverless and electric shuttle, will continue to offer guests an up-close look at ...
(Date:11/30/2015)... ... November 30, 2015 , ... In an effort ... the Word of Life Christian Church of Flint, MI, hosted a family-oriented evening ... 1.25 ton pile of candy dubbed “Candy Mountain”. , A Forever Recovery, a ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... Cumberland Pharmaceuticals (CPIX), today announced that A.J. Kazimi ... December 3, 2015. TIME: 3:15p.m. ET LINK: ... --> DATE: Thursday, December ... --> --> This will ... to ask the company questions in real-time - both in ...
(Date:11/30/2015)... 2015 NHS Supply Chain has placed ... from Varian Medical Systems (NYSE: VAR ) ... older machines and institute modern radiotherapy and radiosurgery ... The order, placed in September, also includes ten ... RapidArc® and Eclipse™ software systems.    ...
(Date:11/30/2015)... Texas , Nov. 30, 2015  Hanger, Inc. ... amendment and restatement of the terms of its previously ... Solicitation") relating to its $200,000,000 aggregate principal amount 7⅛% ... other things, (i) the consent fees payable pursuant to ... on the Notes and (iii) the expiration date of ...
Breaking Medicine Technology: