Featured Research

from universities, journals, and other organizations

H1N1 more risky than seasonal flu in children with sickle cell disease

Date:
December 9, 2009
Source:
Johns Hopkins Medical Institutions
Summary:
Infection with the H1N1 virus, or swine flu, causes more life-threatening complications than seasonal flu in children with sickle cell disease, according to new research. The findings warn parents and caregivers that such children are more likely to need emergency treatment and stays in an intensive-care unit.

Infection with the H1N1 virus, or swine flu, causes more life-threatening complications than seasonal flu in children with sickle cell disease, according to research from Johns Hopkins Children's Center. The findings, to be presented on Dec. 7 at the annual meeting of the American Society of Hematology, warn parents and caregivers that such children are more likely to need emergency treatment and stays in an intensive-care unit.

The researchers analyzed the records of 118 children with sickle cell disease treated for any kind of flu at Hopkins Children's between September of 1993 and November of 2009. Of them, 28 were infected with the H1N1 virus, a new strain that emerged for the first time in April of 2009.

While both the seasonal flu and the H1N1 virus caused similar general symptoms like fever, cough and a runny nose in most of the children, sickle cell patients infected with H1N1 were three times more likely to develop acute chest syndrome, a leading cause of death among these patients, marked by inflammation of the lungs, reduced oxygen capacity and shortness of breath. H1N1-infected children were five times more likely to end up in the intensive-care unit, and were overall more likely to end up on a ventilator and more likely to need a blood transfusion than those with seasonal flu.

Another Hopkins Children's study, released earlier this year, found that children with sickle cell disease are hospitalized with seasonal flu nearly 80 times more often than other children.

The researchers say their findings point to the need to include children with sickle cell disease in the list of those who must be immunized against all flu strains, which already includes children with asthma, diabetes, heart disease and other chronic conditions.

"Children with sickle cell disease are hospitalized about once a year for pain crises and other complications, so we should do everything we can to prevent hospitalization from the flu by using safe and effective vaccines," says lead investigator John J. Strouse, M.D. Ph.D., a pediatric hematologist at Hopkins Children's.

Named for the unusually sickle-shaped red blood cells caused by a genetic abnormality, sickle cell anemia affects nearly 100,000 Americans. The cells' abnormal structure reduces their oxygen delivery to vital organs and causes them to get stuck in the blood vessels, leading to severe pain and so-called "sickling crises," which require hospitalization.

The CDC recommends that all children over 6 months of age get seasonal and H1N1 flu shots, except those who are allergic to eggs or have had a severe reaction to a flu vaccine in the past.

Co-investigators include Martha Amoako, B.S.; Megan Reller, M.D., M.P.H.; and James Casella, M.D. The research was funded by the National Heart Lung and Blood Institute and the Doris Duke Charitable Foundation.


Story Source:

The above story is based on materials provided by Johns Hopkins Medical Institutions. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins Medical Institutions. "H1N1 more risky than seasonal flu in children with sickle cell disease." ScienceDaily. ScienceDaily, 9 December 2009. <www.sciencedaily.com/releases/2009/12/091207095509.htm>.
Johns Hopkins Medical Institutions. (2009, December 9). H1N1 more risky than seasonal flu in children with sickle cell disease. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2009/12/091207095509.htm
Johns Hopkins Medical Institutions. "H1N1 more risky than seasonal flu in children with sickle cell disease." ScienceDaily. www.sciencedaily.com/releases/2009/12/091207095509.htm (accessed April 17, 2014).

Share This



More Health & Medicine News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com
Is Apathy A Sign Of A Shrinking Brain?

Is Apathy A Sign Of A Shrinking Brain?

Newsy (Apr. 17, 2014) A recent study links apathetic feelings to a smaller brain. Researchers say the results indicate a need for apathy screening for at-risk seniors. Video provided by Newsy
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. Video provided by Newsy
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:
from the past week

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