Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Vaccinating children protects adults as well

03.03.2004


Since the approval of a vaccine against pneumococcal bacteria for young children in 2000, there has not only been a drop in the incidence of severe disease caused these bacteria in children but also a significant decline in the disease in adults. Researchers from the Centers for Disease Control and Prevention report their results today in two studies at the International Conference on Emerging Infectious Diseases.



"We were pretty confident when we recommended this vaccine for children it would help them," says Cynthia Whitney, a researcher on both studies. "What was a pretty pleasant surprise was the amount of benefit we’ve seen in unvaccinated populations."

Steptococcus pneumoniae, also called pneumococcus, is one of the most common causes of bacterial meningitis in children in the United States. It can also cause bacterial pneumonia and deadly bloodstream infections. In its less severe forms it can also cause ear and throat infections. Pneumococcus bacteria can be found colonizing many people’s noses and throats without causing infection. Why it suddenly invades the body and causes disease is unknown.


A vaccine against pneumococcal disease has been available for adults and children over 2 years of age since the 1980s, but in 2000 a new vaccine was approved by the FDA for children 2 to 23 months old.

Whitney and her colleagues have been tracking the incidence of the most severe forms of the disease, invasive pneumococcal disease (IPD) – defined as meningitis or a bloodstream infection, which can include some cases of pneumonia – since the introduction in the vaccine.

"After the first full year we made our first report suggesting the effectiveness of the vaccine. We saw a significant decrease in IPD in target age group," says Whitney. "At that time we weren’t sure if it had just been a mild season and the numbers might go back up the next year, or if it was a real downturn due to the vaccine."

The results released today from the second year of surveillance show a continued reduction in IPD rates in children for whom the vaccine is recommended. The rate of IPD in children 2 to 23 months of age from pneumococcal strains that the vaccine protects against was 94% lower in 2002 than it was in 2001. There was also a decline in IPD in older children (age 2-4) and very young children (less than 2 months old) as well.

Another study released today shows a continuing decline in cases of IPD in adults as well. This supports the theory that young children may have been serving as a reservoir for the bacteria in the general population.

"We’re vaccinating children and the children in turn are not passing the bacteria on to adults and other children," says Whitney. "Overall, the vaccine has done a great job of preventing disease."


The International Conference on Emerging Infectious Diseases is organized by the Centers for Disease Control and Prevention (CDC), the American Society for Microbiology, the Council of State and Territorial Epidemiologists, the Association of Public Health Laboratories and the World Health Organization. More information on the meeting can be found online at www.iceid.org.

Jim Sliwa | EurekAlert!
Further information:
http://www.iceid.org
http://www.asmusa.org/

More articles from Studies and Analyses:

nachricht Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University

nachricht New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>