HOME >> MEDICINE >> NEWS
Why is this year's flu so severe?

Why is this year's flu packing such a wallop? And why is it taking such a harsh toll on young children?

One reason is that the flu virus has changed, or mutated, slightly in the nine months since flu makers designed this year's vaccine, and those changes may be rendering the vaccine less effective, according to flu expert John Treanor, M.D., director of the Vaccine Treatment and Evaluation Unit at the University of Rochester. Treanor provides an update on this year's flu and explains the reasons for its unusual severity in an article in the January 15, 2004 issue of the New England Journal of Medicine.

While this year's flu vaccine may be less effective than expected, an additional problem is making this flu season worse for young children. The flu virus most prevalent this year is from a family of viruses that has been scarce in the United States over the last three years. That means nearly all children ages three and under have never encountered the virus or one similar to it and haven't produced antibodies that can fight it.

"The immune systems of young kids are being caught off guard this year," says Treanor. "Young children who get influenza are at higher risk for becoming seriously ill and developing other complications. That's why we're hearing more reports of very sick infants and toddlers, and why we have been urging parents to have their kids immunized." Treanor notes that the Centers for Disease Control and Prevention recently began to recommend influenza vaccination for all children six months to 23 months of age.

Flu vaccines typically are designed to protect against several strains of virus from different families of influenza. But over time viruses change, or mutate. Scientists studying this year's flu virus have discovered two particular changes that are troublesome because they occurred in proteins on the outer surface of the virus that this year's vaccine was designed to target. The small mu
'"/>

Contact: Christopher DiFrancesco
chris_difrancesco@urmc.rochester.edu
585-273-4790
University of Rochester Medical Center
14-Jan-2004


Page: 1 2

Related medicine news :

1. Overweight, boozy and depressed: Why we need healthy new years resolutions
2. This years Wakley Prize essays

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/21/2019)... ... , ... AltMed Florida has announced its first Orlando area MÜV™ Medical Cannabis Dispensary ... at exit 94) at 10 a.m. Friday, May 24, pending final approvals. , Just north ... Apopka, Sanford and many others along the busy I-4 corridor. , This is only ...
(Date:5/21/2019)... (PRWEB) , ... May 21, 2019 , ... ... his associate Dr. Charniece Whitaker, are raising awareness of the ability of ... smile. Dr. Cieplak and Dr. Whitaker welcome new patients with crooked teeth interested ...
(Date:5/21/2019)... , ... May 21, 2019 , ... ... receive the Founders Award at the 24th annual Association of Corporate Growth Awards ... and build companies. , Smile Brands, a leading dental support organization with over ...
(Date:5/21/2019)... ... May 21, 2019 , ... If you’ve ever struggled to convince a ... refused to eat anything but frozen waffles for what seemed like an eternity, then ... the vitamins and minerals that help them grow. , Little DaVinci has applied ...
(Date:5/21/2019)... ... May 21, 2019 , ... ... in healthcare, today announced that with the broadening scope of the Carequality ... pharmacies and paper-based providers using Carequality. , Kno2 has been with Carequality ...
Breaking Medicine News(10 mins):
(Date:5/21/2019)... (PRWEB) , ... May 21, 2019 , ... GoGreen ... and Pellets. Like humans, equines also have an internal endocannabinoid system which is vital ... support the health and homeostasis in your equine. Studies have shown that CBD can ...
(Date:5/21/2019)... , ... May 21, 2019 , ... ... with or without a referral to receive gentle tooth extractions . Dr. ... replace them with lifelike dental implants if the patient desires. A dual-certified periodontist ...
(Date:5/21/2019)... ... 21, 2019 , ... Renal Support Network (RSN), a nonprofit, ... our 17th Annual Essay Contest . , RSN’s Annual Essay Contest ... on dialysis or have a kidney transplant to express their ideas, views, coping ...
Breaking Medicine Technology:
Cached News: