Our sources to answer five flu questions are the Centers for Disease Control and Jason Briscoe, Director of Pharmacy at Discount Drug Mart.

So let's get to the questions that you want to know:

1. Is there a shortage of flu vaccine?

While we're in peak season and some pharmacies may be running out, there is no shortage of the flu vaccine at this point.

2. Is there a shortage of Tamiflu?

Tamiflu is the medication you can take within 48 hours of flu onset to shorten its duration. There are other antivirals that come in generic form. While some pharmacies may be running low, there is no official shortage. It's best to call ahead to make sure it's in stock.

3. Can I get the flu twice in the same season?

If you didn't get a flu shot, you're at risk for all four strains circulating. However, the virus is always mutating, so it's possible you could experience a second bout with a different strain.

4. Will your flu shot last until the end of the season?

The flu can circulate through late May. Immunity can wane over time, usually in those over 65. But getting a second shot is not recommended.

5. Is it too late to get your flu shot?

No. Getting a flu shot now is still your best protection for yourself and those vulnerable around you.

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