Featured Research

from universities, journals, and other organizations

Could Older Population Have Enough Exposure To Past H1N1 Flu Strains To Avoid Infection?

Date:
June 25, 2009
Source:
Lifespan
Summary:
The outbreak of H1N1 in 1977 may have an impact on this pandemic. In the late 1970s, an influenza H1N1 appeared in humans. It had a pandemic-like spread that began in younger aged individuals.

A letter to the editor by Rhode Island Hospital infectious diseases specialist Leonard Mermel, DO, identifies characteristics of the outbreak of H1N1 in 1977 and speculates its impact on this pandemic.

Related Articles


Mermel notes that in the late 1970s, an influenza H1N1 reappeared in humans. It had a pandemic-like spread that began in younger aged individuals. This strain, known as the "Russian flu" H1N1, was similar to H1N1 strains that circulated internationally between 1946 and 1957. The Russian flu spread rapidly across the former Soviet Union, initially affecting individuals between the ages of 14 and 20 in schools, as well as young military personnel, and later spread to preschool children. Individuals older than age 30, however, had dramatically lower attack rates and the overall mortality was low. The epidemic peaked rapidly, with a relatively short duration.

In the United States, the first outbreak of the Russian flu occurred in a Wyoming high school. The attack rate there was over 70 percent, however, it affected students only; no faculty were reported to have the illness. High attack rates were seen in schools as well as military bases throughout the United States, similar to the outbreak in Russia. There were few reports of the H1N1 strain in individuals older than age 26, and again, the mortality rate was low.

In his commentary, Mermel hypothesizes that the H1N1 strain circulating now may have enough similarity to the previously circulating H1N1 strains or the H1N1 used in past vaccines so that it may lead to protection of older individuals. He concludes by noting that the weeks ahead should help us to determine if this will be the case.

His letter is published in the June 20 edition of the journal The Lancet 2009 (vol 373 p2108-09).


Story Source:

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


Cite This Page:

Lifespan. "Could Older Population Have Enough Exposure To Past H1N1 Flu Strains To Avoid Infection?." ScienceDaily. ScienceDaily, 25 June 2009. <www.sciencedaily.com/releases/2009/06/090618200931.htm>.
Lifespan. (2009, June 25). Could Older Population Have Enough Exposure To Past H1N1 Flu Strains To Avoid Infection?. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2009/06/090618200931.htm
Lifespan. "Could Older Population Have Enough Exposure To Past H1N1 Flu Strains To Avoid Infection?." ScienceDaily. www.sciencedaily.com/releases/2009/06/090618200931.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
Powered by NewsLook.com
Madagascar Working to Contain Plague Outbreak

Madagascar Working to Contain Plague Outbreak

AFP (Nov. 24, 2014) Madagascar said Monday it is trying to contain an outbreak of plague -- similar to the Black Death that swept Medieval Europe -- that has killed 40 people and is spreading to the capital Antananarivo. Duration: 00:42 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