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Diabetes & the Flu

Diabetics are at an increased risk for severe complications from the flu. Find out why and what you can do to protect yourself or someone you love.

By Jeffrey Kowalski, MD, family medicine physician with Wheaton Franciscan Medical Group in Wauwatosa.

This month, you’ll start to hear more about ways to protect yourself from catching the flu, which includes getting your annual flu shot.  But did you know that if you are a diabetic, Type 1 or Type 2, you are at an increased risk for developing severe complications – even death – as a result from getting the flu?

The flu, or influenza, is a viral infection of the respiratory system and muscles. And while everyone has a chance of catching flu, simply having diabetes makes it harder to fight off viruses that cause flu.

Roughly 24 million people have diabetes in the U.S., according to the American Diabetes Association. Reports show that number is expected to double or triple in the next 40 years. According to the U.S. Centers for Disease Control and Prevention (CDC), diabetes can actually make your immune system weaker to fighting severe influenza disease—even if your diabetes is well managed.  A diabetic’s blood sugar can rise just by simply being sick with the flu.

As we all know, when you’re sick, you sometimes don’t want to eat; that, too, can impact and fluctuate a person’s blood sugar levels. Put simply, people who suffer from diabetes are more susceptible – three times more likely than those without diabetes – to develop complications and even die from flu or pneumonia-related issues.

So if you have diabetes, it is important for you and any close household contacts or caregivers to get an annual seasonal flu shot. The CDC recommends that anyone aged 6 months or older receive the seasonal flu shot every year. The nasal flu spray is not recommended for diabetics because their immune systems are generally weaker.

In addition, the CDC recommends diabetics include getting a vaccine to protect themselves against the effects of pneumococcal bacteria, which will help protect them from developing pneumonia.

Diabetics should also take steps to prevent the spread of germs such as covering coughs and sneezes, as well as practicing good hand washing skills.

If a person with diabetes contracts the flu, they should :

  • Continue to take any medication – including insulin – to manage their blood sugar levels, even if they have trouble eating. Your doctor may even increase your insulin dosage during times when you’re sick.
  • Monitor your glucose levels more frequently, every four hours, and watch for changes.
  • Drink extra liquids, and if you can’t eat, try to consume soft foods at generally the same carbohydrate level you would normally consume.
  • Watch your weight.  If you lose weight without trying, it could be a sign that your blood glucose is high.


You should contact your doctor or seek emergency attention if you feel too sick to eat or cannot keep food down for more than six hours, experience severe diarrhea, a temperature over 101 degrees F, feel dizzy or sleepy, or if your blood glucose drops below 60 mg/dL or remains above 300 mg/dL.

For more information:

This post is contributed by a community member. The views expressed in this blog are those of the author and do not necessarily reflect those of Patch Media Corporation. Everyone is welcome to submit a post to Patch. If you'd like to post a blog, go here to get started.

Craig September 09, 2012 at 02:47 AM
Funny we have a diabetes epidemic in this Country, yet we have vitamin D added to milk and food products. Anyone who claims they have a product that will cure or prevent diabetes is; in my opinion, a snake oil salesman.
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Sree September 25, 2012 at 01:13 AM
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Peter Egan Jr. October 10, 2012 at 07:04 PM
Craig, there is no pill that can prevent diabetes, but vitamin D from the sun has shown tremendous promise in clinical trials. It has been proven to prevent like, 50 other diseases and has also been proven to increase testosterone levels in middle-aged men better than any drug or supplement. The key is that it is obtained from sunlight. If a snake oil salesman can sell someone light from the sun, my hat's off to him. In fact, I'd like to know who and where he is because I'd like to add him to my own company's sales force.
Peter Egan Jr. October 10, 2012 at 07:07 PM
We call comments like that one "SPAM".

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