Content on this page was developed during the 2009-2010 H1N1 pandemic and has not been updated.
- The H1N1 virus that caused that pandemic is now a regular human flu virus and continues to circulate seasonally worldwide.
- The English language content on this website is being archived for historic and reference purposes only.
- For current, updated information on seasonal flu, including information about H1N1, see the CDC Seasonal Flu website.
General Information About 2009 H1N1 Vaccines
This season, vaccines to protect against the 2009 H1N1 virus (sometimes called “swine flu”) have been produced. Like seasonal flu vaccines, there are two kinds of 2009 H1N1 vaccines: a "flu shot "; that is given with a needle, usually in the arm; and a nasal spray flu vaccine. The same manufacturers that produce seasonal flu vaccines also produced the vaccines against the pandemic 2009 H1N1 virus in the same way that the seasonal vaccines are made. Vaccines to protect against 2009 H1N1 are widely available. CDC is now encouraging everyone to get vaccinated against 2009 H1N1, including people 65 years and older. Learn More…
Vaccine Fact Sheets
Explains the benefits and risks of the vaccines, as well as who should get vaccinated.
- Key Facts about H1N1 Vaccines Oct 7
- The H1N1 Inactivated Vaccine (the shot) Oct 2
- The H1N1 Live Attenuated Intranasal Vaccine (the nasal spray) Oct 2
Questions and Answers about 2009 H1N1 Vaccines
- Voluntary Non-Safety-Related Recall of Specific Lots of Nasal Spray Vaccine for 2009 H1N1 Influenza Dec 22
- 2009 H1N1 Influenza Vaccination Coverage Dec 22
- Q & A for parents: recall of some batches of children’s 2009 H1N1 flu vaccine Dec 18
- Non-Safety-Related Voluntary Recall of Certain Lots of Sanofi Pasteur H1N1 Pediatric Vaccine Dec 15
- General Q&As Aug 3
- 2009 H1N1 Vaccine Q&As for Businesses Oct 16
- Q&As about the H1N1 Live Attenuated Intranasal Vaccine (the nasal spray) Oct 7
- Q&A Regarding 2009 H1N1 Influenza Vaccine Supply Nov 4
- Q&As: 2009 H1N1 and Pneumococcal Disease in the News Nov 17
Information for Specific Groups
- People at High Risk of Developing Flu-Related Complications Nov 9
- Pregnant Women: Information for General Public Oct 2
- Pregnant Women: Information for Providers Oct 2
- Seniors Dec 21
Supply and Distribution
Vaccine Safety and Monitoring
Social Media for 2009 H1N1 Vaccination
- I Never Get the Flu (Public Service Announcement)
- Podcast on Who Should Get the 2009 H1N1 Vaccine Sept 3
- Video: Ask Dr. Anne Nov 19
(9 minute video of CDC expert Dr. Schuchat talking about the H1N1 vaccine) - Blog: Focus on Flu with Anthony Fiore, MD, MPH (WebMD)
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