Featured Research

from universities, journals, and other organizations

Vaccination, antivirals and social distancing may blunt impact of H1N1 influenza

Date:
December 3, 2009
Source:
Canadian Medical Association Journal
Summary:
The relatively low number of new cases created by a single case of H1N1 influenza indicates that mitigation strategies such as vaccination, social distancing and the use of antiviral drugs may help to lessen the final impact of the virus, suggests an epidemiological modeling study.

The relatively low number of new cases created by a single case of H1N1 influenza indicates that mitigation strategies such as vaccination, social distancing and the use of antiviral drugs may help to lessen the final impact of the virus, suggests an epidemiological modelling study reported in CMAJ (Canadian Medical Association Journal).

Related Articles


The study looked at data from laboratory-confirmed cases of H1N1 between April 13 and June 20, 2009 in Ontario, Canada and performed 1000 simulations to estimate epidemiological parameters for the virus. These findings may be useful to policy-makers in managing the pandemic.

"Because the 2009 influenza pandemic continues to evolve, these values are critical for planning and can be used to reduce some of the uncertainty around the health burden likely to be associated with this disease in the coming months," writes Dr. David Fisman of the Dalla Lana School of Public Health, University of Toronto, and coauthors.

The study found that the median incubation period for H1N1 influenza was 4 days and the duration of symptoms 7 days. Patients aged 18 years and under recovered more quickly than older patients and the risk of hospital admission among laboratory-confirmed cases (who likely represented 1-10% of total cases) was 4.5%.

People under 1 year of age and over 65 years were at higher risk of hospital admission. Adults older than 50 years made up 7% of cases but accounted for 7 of 10 initial deaths.

According to the study's estimates, the characteristics of the H1N1 virus are similar to those of seasonal influenza. "However, when combined with high attack rates in younger groups, there may be greater absolute numbers of hospital admissions and deaths than are observed in a typical influenza season," write the authors, although this may be attributed to enhanced surveillance during a pandemic.


Story Source:

The above story is based on materials provided by Canadian Medical Association Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ashleigh R Tuite, Amy L Greer, Michael Whelan, Anne-Luise Winter, Brenda Lee, Ping Yan, Jianhong Wu, Seyed Moghadas, David Buckeridge, Babak Pourbohloul, David N Fisman. Estimated epidemiologic parameters and morbidity associated with pandemic H1N1 influenza. Canadian Medical Association Journal, 2009 DOI: 10.1503/cmaj.091807

Cite This Page:

Canadian Medical Association Journal. "Vaccination, antivirals and social distancing may blunt impact of H1N1 influenza." ScienceDaily. ScienceDaily, 3 December 2009. <www.sciencedaily.com/releases/2009/12/091203111040.htm>.
Canadian Medical Association Journal. (2009, December 3). Vaccination, antivirals and social distancing may blunt impact of H1N1 influenza. ScienceDaily. Retrieved November 29, 2014 from www.sciencedaily.com/releases/2009/12/091203111040.htm
Canadian Medical Association Journal. "Vaccination, antivirals and social distancing may blunt impact of H1N1 influenza." ScienceDaily. www.sciencedaily.com/releases/2009/12/091203111040.htm (accessed November 29, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, November 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
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