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Flu Information for the UCSD Community

Get tips on reducing the spread of seasonal flu (influenza).

Annual flu shots are recommended for everyone

The Centers for Disease Control (CDC) recommends everyone 6 months of age and older to receive the seasonal flu vaccination. In February 2010, CDC's Advisory Committee on Immunization Practices (ACIP) voted in favor of "universal" influenza vaccination in the United States to protect as many people as possible against the flu.

About 2 weeks after vaccination, antibodies that provide protection against influenza virus infection develop in the body.

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2013-2014 seasonal flu vaccine information

Most of the flu vaccine offered for the 2013-2014 season will be trivalent (3 component). Flu vaccines are designed to protect against 3 influenza viruses that experts predict will be the most common during the upcoming season.

Three kinds of influenza viruses commonly circulate among people today: Influenza A (H1N1) viruses, influenza A (H3N2) viruses, and influenza B viruses. Each year, one flu virus of each kind is used to produce seasonal influenza vaccine.

The 2013-2014 trivalent influenza vaccine is made from the following 3 viruses:

  • an A/California/7/2009 (H1N1)pdm09-like virus
  • an A/California/7/2009 (H1N1)pdm09-like virus
  • a B/Massachusetts/2/2012-like virus

Some seasonal flu vaccines will be formulated to protect against 4 flu viruses (quadrivalent flu vaccines). All nasal spray vaccines are expected to be quadrivalent; however, this makes up only a small portion of total vaccine availability. It is recommended that quadrivalent vaccines containing 2 influenza B viruses contain the above 3 viruses and a B/Brisbane/60/2008-like virus.

Options for getting a flu shot

Faculty and staff enrolled in UC-sponsored health plans

  • Contact your individual health care provider for availability and instructions on getting immunized to protect yourself from seasonal flu.

Student vaccinations

Find a public flu shot clinic

Other ways to reduce the spread of flu

Learn to recognize common flu symptoms

  • High fever (102° – 104°F)
  • Headache
  • General aches and pains
  • Extreme tiredness
  • Chest discomfort or cough
  • Runny or stuffy nose
  • Nausea, vomiting, or diarrhea (more common among children than adults)

Additional resources

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