The flu season is nearing an end, but state health officials are still reporting cases of the pandemic H1N1 strain causing hospitalizations and even deaths.
Last week, the 99th person in North Carolina died of complications from H1N1 flu, and 376 people were hospitalized.
"We are still seeing a low level of activity," said Dr.Megan Davies, state epidemiologist. She said the virus remains a particular threat to people at high risk of complications, including those with chronic diseases such as asthma and diabetes, children and pregnant women.
Since April, when the flu first struck in North Carolina, the virus crowded out other competing strains so that all influenza illnesses tested across the state turned out to be H1N1, Davies said.
Most deaths occurred among people in high risk groups, and younger than 65. That's unusual for influenza, which typically strikes older people with more severe illness.
But things could be worse. In neighboring Georgia, flu cases have spiked in recent weeks, and officials with the Centers for Disease Control and Prevention suggest the continuing infections could be the result of low vaccination rates in that state.
In North Carolina, 18 percent of the population, or 1.7 million people, got H1N1 flu shots or nasal inoculations, Davies said. The vaccination rate was higher than for a normal flu season.
"I'm confident we averted some very bad outcomes through vaccination," Davies said.
Still, thousands of doses of unused vaccine will be destroyed. Demand for the vaccine waned as the supply improved after initial rationing.
Davies said people could still benefit from flu shots, which are available free at county health departments.
"I think it's probably still worth getting vaccinated for a little while longer," she said. "We're still hearing reports of deaths, and this probably will go on for weeks."
Next year's seasonal flu shot will target the H1N1 strain, along with two others. Davies said people who were vaccinated against the virus this year, and those who got sick, have immunity to H1N1, but they will need a seasonal flu shot for protection against the other strains of influenza that are likely to circulate.
Across the nation, more than 12,000 people have died from infections attributed to H1N1, which spread across the globe last spring.
savery@newsobserver.com or 919-829-4882
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