Two novel flu strains found
No cases have emerged in Del.
1:05 AM, Dec. 23, 2011
Written by
KELLY APRIL TYRRELL
The News Journal
Along with shorter days, holiday parties and eggnog, this time of year also brings the flu. And the Delaware Division of Public Health Thursday reported two novel influenza strains have emerged this year.
Viruses are named for the particular proteins present on their outer coats, and the new strains are known as H3N2 and H1N2. Both are influenza A swine viruses, normally found in pigs but occasionally passed to humans. The Centers for Disease Control and Prevention reports H3N2 has been found in 11 people in five states, including West Virginia, Indiana, Pennsylvania, Maine and Iowa. A single case of H1N2 also has been reported, in Minnesota.
Like all states, Delaware monitors influenza by working with local health care providers who collect oral and nasal specimens from patients with flu-like symptoms, including fever and body aches. Only two cases of the typical seasonal virus, known as A/H3, have been reported in Delaware this season. The second was reported Thursday. H3N2 and H1N2 have not been found here, and so far, no cases of human-to-human transmission in any state have been confirmed.
"We want people to be aware that there are some novel strains circulating, and we want them to know we are taking this seriously," said Dr. Karyl Rattay, director of the Delaware Division of Public Health. "But at this point, it doesn't appear to be anything to be alarmed by."
People who receive the flu vaccine likely are not protected from these novel strains, since they were not in circulation in the spring, when this year's vaccines were made. Rattay said H3N2 and H1N2 are genetically different from the strains targeted in the vaccine, which includes 2009 H1N1, A/H3 and influenza B.
However, both strains can be treated with current antiviral medications. Megan Williams, a nurse practitioner and director of Beebe Medical Center's new population health program, urges people to seek treatment within 48 hours of developing flu-like symptoms, before the virus has had a chance to replicate in the body. She and Rattay also recommend people get vaccinated against seasonal flu.
"Flu season peaks in Delaware at the end of January through February, so there is still time to get vaccinated," Williams said.
Contact Kelly April Tyrrell at 324-2547 or
ktyrrell@delawareonline.com.
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