Navigation Links
CDC Revises Death Estimates From Flu
Date:8/26/2010

By Amanda Gardner
HealthDay Reporter

THURSDAY, Aug. 26 (HealthDay News) -- Over the past 30 years, the number of annual flu-related deaths in the United States has ranged from a low of about 3,300 to a high of about 49,000.

This is a revision of the static estimate of 36,000 annual deaths that has been reported consistently for years by the U.S. Centers for Disease Control and Prevention.

The update simply underscores the moving-target nature of influenza -- that there is no average flu season, CDC officials said Thursday.

"We want to point out the incredible variability of influenza seasons," said Dr. David Shay, lead author of a report appearing in the Aug. 27 issue of the Morbidity and Mortality Weekly Report, a publication of the CDC.

"Because of the variability of the flu, we're moving from an average to a range," added Shay, who spoke at a morning news conference.

The new numbers reflect both an expanded time period and different strains of the flu in different years.

"There are at least four factors that affect mortality in any given year: the specific influenza strain, the length of the season, how many people get sick and who gets sick -- whether it's hitting younger or older people differentially," explained Shay, who is a medical officer with the CDC's National Center for Immunization and Respiratory Diseases.

The new range of numbers takes into account deaths from the 1976-77 flu season through the 2006-07 season, while the old number only looked at the 1990s, when influenza A (H3N2) was a dominant strain.

The lowest mortality figure cited Thursday occurred during the 1986-87 flu season, while the high came during the 2003-04 season. This translates to 1.4 to 16.7 deaths per 100,000 persons.

When the H3N2 strain of flu was predominant, as it was during the 1990s, there were almost three times more deaths than in seasons when other strains dominated.

"On average, H3N2 is more severe than H1N1 and 'B' influenza seasons," Shay said.

In the 31 seasons reflected in the new numbers, about 90 percent of deaths occurred in adults 65 and older, he said.

This contrasts with what has been seen since mid-2009 with the H1N1 "swine" flu circulating, where younger people and children seem most affected.

And no one knows what will happen this coming flu season.

"We have a vaccination [for H1N1] this year so we may not see much," said Dr. Len Horovitz, a pulmonary specialist with Lenox Hill Hospital in New York City. "The crystal ball is a little murky."

Added Shay: "Flu deaths are a moving target. The [new] numbers confirm that influenza has a substantial burden on mortality, but that burden can be quite varied."

More information

The CDC has more on the seasonal flu.

SOURCES: Len Horovitz, M.D., pulmonary specialist, Lenox Hill Hospital, New York City; Aug. 26, 2010, teleconference with David Shay, M.D., medical officer, National Center for Immunization and Respiratory Diseases, U.S. Centers for Disease Control and Prevention; Aug. 27, 2010, Morbidity and Mortality Weekly Report


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. A Little Drinking Cuts Death Risk for Older Adults
2. Deaths From Heart Attack Rise With Delays in Care
3. Elevated heart rate over time linked to significant risk of death
4. Wider Waist May Raise Death Risk Later in Life
5. Secularization of suicide meant callous mockery of writers deaths
6. Study links more time spent sitting to higher risk of death
7. Childhood Cancer Survivors at Risk of Premature Death
8. Study finds lifelong doubling in death risk for men who are obese at age 20 years
9. Baseline PSA predicts risk of death from prostate cancer
10. U.S. Cancer Death Rate Keeps Falling: Report
11. Cancer deaths continue to drop
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits ... terms of the latter, setting the bar too high can result in disappointment, perhaps ... slow progress toward their goal. , Research from PsychTests.com reveals that ...
(Date:6/24/2016)... Michigan (PRWEB) , ... June 24, 2016 , ... June ... about the dangers associated with chronic pain and the benefits of holistic treatments, ... individuals who are suffering with Sickle Cell Disease. , Sickle Cell Disease (SCD) is ...
(Date:6/24/2016)... ... ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida attorneys are recognized ... this recognition are considered among the top 2 percent of lawyers practicing within the ... this year’s Legal Elite Hall of Fame: Miami Shareholders Mark D. Bloom, Burt ...
(Date:6/24/2016)... ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway Pain Relief Products, ... minimum wage raise to $12 an hour by 2020 and then adjusting it yearly to ... value of the minimum wage, assure the wage floor does not erode again, and make ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute ... Dr. Barry M. Weintraub as a prominent plastic surgeon and the network’s newest ... world, and the most handsome men, look naturally attractive. Plastic surgery should be ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Research and Markets has announced the addition of the ... report to their offering. ... failure, it replaces the function of kidneys by removing the ... the treatment helps to keep the patient body,s electrolytes such ... Increasing number of ESRD patients & substantial healthcare expenditure on ...
(Date:6/23/2016)... June 23, 2016  In a startling report released today, ... residents by lacking a comprehensive, proven plan to eliminate prescription opioid ... ranking of how states are tackling the worst drug crisis in ... states – Kentucky , New Mexico ... . Of the 28 failing states, three – ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
Breaking Medicine Technology: