Featured Research

from universities, journals, and other organizations

Community-acquired Staph Pneumonia Appears More Common, Including MRSA

Date:
March 20, 2008
Source:
American Society for Microbiology
Summary:
Preliminary research from the Centers for Disease Control and Prevention suggests that community acquired pneumonia caused by the Staphylococcus aureus bacterium may be more common than originally suspected, including that caused by antibiotic resistant strains.

Preliminary research from the Centers for Disease Control and Prevention (CDC) suggests that community acquired pneumonia (CAP) caused by the Staphylococcus aureus bacterium may be more common than originally suspected, including that caused by antibiotic resistant strains.

Related Articles


"Over the last few years we have been receiving reports of a severe CAP caused by S. aureus. There are a lot of questions about this disease, but until now there have primarily been case studies which tend to highlight the severest of cases and may present a biased picture," says Alexander Kallen, a lead researcher on the study.

To get a better perspective on the disease Kallen and his colleagues focused on 3 pediatric hospitals in the Atlanta area during the 2006-2007 influenza season and conducted surveillance for S. aureus CAP. They identified 53 cases, a higher number than they had expected.

"No one really knows what the true incidence of S. aureus CAP is. People suspect that S. aureus causes 3%-5% of all CAP cases, but the number of cases per month we found suggest that these rates of S. aureus CAP might be higher than previously estimated," says Kallen.

In addition, the data also suggest that the case-fatality rate may be lower than the rate reported in recent case series which have been between 30% and 50%. Kallen's study reports a case-fatality rate of about 13% which is much lower than previous estimates.

The researchers also looked at antibiotic resistance. "One thing that concerns us is methicillin-resistant S. aureus (MRSA) increasing in the community," says Kallen.

As with mortality, they found while the proportion of S. aureus CAP cases caused by MRSA was lower than the case series, it was still significant. Approximately half of the S. aureus CAP cases were caused by MRSA, compared to 70%-80% suggested by recent case series.

"Our study found about half the patients had MRSA, which is not unexpected but quite concerning," says Kallen.

Even more concerning to Kallen was the fact that close to 40% of the children with MRSA CAP were not given antibiotics that covered the resistant strain.

"The fact that a lot of these kids who had MRSA were not treated with antibiotics that have activitity against MRSA suggests that clinicians are not recognizing this organism as a cause of CAP during influenza season," says Kallen.

Kallen notes that this study is just the first step in a progression towards a better understanding of the patterns of this disease. Much more surveillance is necessary before a clear picture can develop.

Researchers report their findings March 19 at the 2008 International Conference on Emerging Infectious Diseases in Atlanta, Georgia.


Story Source:

The above story is based on materials provided by American Society for Microbiology. Note: Materials may be edited for content and length.


Cite This Page:

American Society for Microbiology. "Community-acquired Staph Pneumonia Appears More Common, Including MRSA." ScienceDaily. ScienceDaily, 20 March 2008. <www.sciencedaily.com/releases/2008/03/080319120322.htm>.
American Society for Microbiology. (2008, March 20). Community-acquired Staph Pneumonia Appears More Common, Including MRSA. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2008/03/080319120322.htm
American Society for Microbiology. "Community-acquired Staph Pneumonia Appears More Common, Including MRSA." ScienceDaily. www.sciencedaily.com/releases/2008/03/080319120322.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins