Navigation Links
Flu Season Off to a Very Late Start: CDC
Date:2/23/2012

By Steven Reinberg
HealthDay Reporter

THURSDAY, Feb. 23 (HealthDay News) -- It took a long time to get started, but this winter's flu season is finally here, say experts at the U.S. Centers for Disease Control and Prevention.

They report that flu activity picked up in the past couple of weeks, making this the latest start to any influenza season since 1987-1988. Lab-confirmed cases of influenza have now been spotted in all 50 states, but the weekly percentage of lab-tested respiratory specimens did not exceed 10 percent -- the threshold for declaring that a flu season has begun -- until Feb. 4, the CDC report found.

Why this year's flu season is starting so late is most likely the result of a complex set of circumstances that remain unclear, said Dr. Joseph Bresee, chief of the CDC's epidemiology and prevention branch in the CDC's influenza division.

"It's probably related to several things and probably other things we don't understand well," Bresee said. "Mostly, it's related probably to the fact that flu is unpredictable. There are a lot of things about flu we don't understand."

The flu update was published in the Feb. 24 issue of Morbidity and Mortality Weekly Report, a CDC publication.

In most flu seasons, there are some 200,000 hospitalizations and 36,000 deaths from flu complications, according to the CDC.

However, so far hospitalizations for flu have remained below epidemic levels -- just one hospitalization per 100,000 people, compared to nearly 22 per 100,000 people in the 2010-2011 season.

There have been reports of three infant deaths in the United States so far from flu complications, much lower than the total of 122 flu-linked infant deaths seen last season and the 348 infant deaths observed during the 2009-2010 H1N1 pandemic.

Only one state, California, is reporting "widespread" influenza cases, the CDC added.

This year, three flu strains are circulating: Influenza A (H3N2) viruses (which has predominated this season), influenza A H1N1 (the "swine flu" strain) and influenza B.

These strains haven't evolved or mutated and are the same strains that have been circulating for the past few years, Bresee said. They also match the strains included in the flu vaccine over the past two years.

Good vaccination coverage may be playing a role in flu's relative inactivity this year. "We have had very high vaccination rates in the last couple of years, and that probably dampens the amount of flu," Bresee said. "The underlying immunity of the population is probably higher than it usually is to the viruses we are seeing."

"But there are a lot of things that play into it, most of which we don't understand but are thankful for," Bresee added.

And does the late arrival of the flu herald its early departure this year? "It's hard to know if the late start to the flu season means that it will go on longer," Bresee said.

"We are getting a late start, but we don't know when the peak will be, if it will be a lower peak or a normal peak," he said. "We always can predict after the year is over, sadly."

"So, the good news is that because of the late start, folks who haven't been vaccinated still have a chance to do so," Bresee said. "Since we are seeing a late start, most communities have the opportunity to get vaccinated ahead of the flu season."

Everyone aged 6 months and older should get a flu shot, according to the CDC.

More information

For more on the flu, visit the U.S. Centers for Disease Control and Prevention.

SOURCES: Joseph Bresee, M.D., chief, epidemiology and prevention branch, influenza division, U.S. Centers for Disease Control and Prevention; Feb. 24, 2012, Morbidity and Mortality Weekly Report


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

Related medicine news :

1. One Month Later, Haiti Quake Survivors Report Need For Protection From Crime, Rainy Season
2. Pandemic flu, like seasonal H1N1, shows signs of resisting Tamiflu
3. H1N1 Flu Spreads Slower Than Seasonal Flu: Study
4. Pre-Season Test Spots Baseball Pitchers at Risk of Injury
5. Cell Science Systems Recruits Seasoned Executive to Head New Lifestyle Medicine & Nutritional Solution for Health Care Professionals
6. Duffy & Duffy Continues Steady Growth with Addition of Two Seasoned Medical Malpractice Attorneys
7. Some Allergy Sufferers Can Skip the Sneezing Season
8. EyeCare America Ushers in the New Season and Springs for Eye Exams for Qualified Seniors
9. Baseball season opener: Athletes and ethicists look at fairness in sport
10. Epione Helps Women Get Ready for Bikini Season without Hitting the Gym
11. For older adults, flu season tends to peak first in Nevada, last in Maine
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Flu Season Off to a Very Late Start: CDC 
(Date:9/22/2017)... ... , ... MEDIA OPPORTUNITY: , Save Our Hospital - Albert Lea will host ... rallying against Mayo Clinic. Specifically, media can talk to steering committee members and patients ... close the Albert Lea hospital. , The rally aims to protect the most vulnerable ...
(Date:9/22/2017)... Island, New York (PRWEB) , ... September 22, ... ... manufactures, delivers and assembles Passive House buildings, and Richard Pedranti Architect ... Prefabricated Passive House from the strategic partner’s Solsken Line of Model Homes ...
(Date:9/22/2017)... (PRWEB) , ... September 22, 2017 , ... Happy Living’s ... a time - carries it into the entertaining and delicious worlds of theatre ... Gersper (founder of Happy Living) convinced him to turn his play into a book. ...
(Date:9/22/2017)... ... 22, 2017 , ... First Choice Emergency Room , ... year anniversary of its Houston-Fallbrook facility. , “We are honored to celebrate ... of First Choice Emergency Room Houston-Fallbrook. “It has been a pleasure serving the ...
(Date:9/22/2017)... ... , ... “Letters From Home”: a moving compilation of letters that remind ... “Letters From Home” is the creation of published author, John Allred, a passionate leader ... Savelle Ministries International, who has traveled and ministered on four continents. , “It is ...
Breaking Medicine News(10 mins):
(Date:9/22/2017)... Md. , Sept. 22, 2017  As the ... Republican Senators Bill Cassidy (R-LA) and ... Information notes that the medical device industry is in ... medical device tax, the 2.3% excise tax on medical ... But they also want covered patients, increased visits and ...
(Date:9/18/2017)... PROVIDENCE, R.I. , Sept. 18, 2017 ... in the fields of bioinformatics and immune ... to develop a protective avian influenza A (H7N9) vaccine. ... is distantly related to seasonal influenza and ... approaches, which rely on prior exposure to be ...
(Date:9/9/2017)... , Sept. 8, 2017 ... Mobile MRI Unit coming to Washington DC ... When: Tuesday, September 12 th – Monday, September ... Washington, D.C. offering free MRI brain scans to the public.Where:  ... will be parked at 501 K Street NW, Washington, D.C.What:BTF brings its ...
Breaking Medicine Technology: