With flu season on the horizon, here's what you need to know about this year's vaccine

School’s back, summer’s over, and area pharmacies are enticing customers with low-cost flu vaccinations on every corner.

The Baltimore Sun checked in with Dr. Kathleen M. Neuzil, director of the Center for Vaccine Development at University of Maryland School of Medicine, and area pediatrician Dr. Dan Levy, to pose questions about this year’s influenza vaccine.

When should I get a flu shot?

Now would be good.

“Flu season in Maryland is usually between October and April,” said Levy. “It tends to peak out in colder months when kids are indoors coughing on each other.”

To prepare, Neuzil advises getting a flu shot by the end of October. But sooner may be better for some people. “It’s more important to get the dose than to wait and not get a dose.”

The vaccine takes a week or two to be effective, and those who wait may be out of luck if the flu hits early.

Children getting the flu shot for the first time need two doses, four weeks apart. “Absolutely children need to receive a vaccine as early as possible,” Neuzil said.

Who should get a vaccine?

Almost everyone. The Center for Disease Control recommends that everyone older than 6 months get a flu vaccine.

I’m healthy. Why do I need a flu shot?

It’s not all about you.

“There are a lot of young healthy people who feel invincible and don’t believe they need the flu shot,” said Neuzil. “Also remember that you’re getting an influenza vaccine to protect the people around you,” such as babies, elderly folks and those with compromised immune systems.

Levy talked about the principle of “herd immunization” — meaning “the more people in a population you get covered with a vaccine the more likely it is that you’ll prevent an epidemic,” he said. “If children don’t get sick themselves, they cant spread the flu.”

Is this year’s flu going to be bad?

Hard to say. Influenza can be a life-threatening illness, but its virulence varies from year to year.

“My favorite line is ‘influenza is predictably unpredictable,’” said Neuzil.

Although last year was severe season in the United States, it was less severe in other parts of the world. Doctors can’t say when it will hit, or how virulent it will be.

Can I get a nasal spray?

Yes. This year the nasal spray will be widely available in the United States. Neuzil says it’s just as effective as a shot for people ages 2 and older. “Traditionally the nasal spray has worked extremely well in children,” she said.

In past years, some authorities had been cautious in endorsing the nasal spray, Neuzil said. But it was widely and successfully used in the U.K. last year, and other studies have proven its effectiveness.

This year, “Parents can use either the spray or the shot as long as the child is at least 2 years or older.”

The CDC recommends the nasal spray flu vaccine (or live attenuated influenza vaccine) as an option for non-pregnant individuals ages 2 to 49.

Are there any risks associated with the flu shot?

No. “I think there is a lot of hesitancy about vaccines in general,” Neuzil said. But the flu shot has been around for a long time — and scientists have studied it to prevent side effects. Common side effects include a sore arm from the shot or a runny nose from the nasal spray.

While older versions of the vaccine, perhaps 40 years ago, may have caused some side effects, modern vaccines are well-tolerated, Neuzil said.

Is it possible to get the flu even after being vaccinated?

Yes. “The vaccine is never 100 percent effective,” Levy said.

Still, even for those who do end up getting the flu, the vaccine will help it be less severe, and it will be less likely that the patient ends up in the hospital.

Levy said about 180 children died in the U.S. from flu last year — he thinks many of those deaths could have been prevented had the kids been vaccinated.

Can I get sick from the flu shot?

No. “You cannot get sick from the flu shot,” Neuzil said. “There’s no live virus there.”

A small portion of people may find that they coincidentally get a headache the following day and may be tempted to blame the vaccine. “It’s human nature to correlate the two,” she said.

But in reality, she said, the flu shot doesn’t make people sick. “Sometimes there are other viruses that are circulating in the community.”

What school systems are offering flu vaccines?

* Baltimore City Public Schools will have flu clinics at schools between Tuesday, November 6, and Wednesday, November 21. Each school with a minimum of 30 students participating will be scheduled for one of these dates. Parents may give permission for their children to be vaccinated using an on-line form at www.vaccineconsent.com. The deadline to give consent is Oct. 22.

* Baltimore County Public Schools are offering flu shots at schools with wellness centers, which include Lansdowne High, Lansdowne Middle, Riverview Elementary, Woodlawn High, Owings Mills High, Parkville High, Kenwood High, Chesapeake High, Deep Creek Middle, Holabird Middle, Dundalk Elementary, Dundalk High, Middle River Middle and Hawthorne Elementary. Parents can register through the school nurse at any time.

In addition students from Dundalk Middle, Sandalwood Elementary, Glenmar Elementary, Victory Villa Elementary, Martin Boulevard Elementary can receive services at the center that is close to their school at clinics being held next week. Parents must enroll their kids ahead of time.

* The deadline for consent with the Howard County Public School System has passed and students have been getting vaccines this month.

* Carroll County Public Schools will have free flu shot clinics in schools from Oct. 22 through Oct. 25. The last day to return consent forms to allow students to participate is Oct. 12.

* The flu mist is being offered in all eight of the Title I schools in Harford County. Parents and guardians must register students by October 18 .

ctkacik@baltsun.com

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