Hepatitis A
The California Department of Public Health (CDPH) warns consumers not to eat Townsend Farms brand Organic Antioxidant Blend of frozen berries sold through Costco stores and Organic Antioxidant Berry Blend sold by Harris Teeter as as they may be linked to a multistate outbreak of hepatitis A infections.
Press Release
Hepatitis A outbreak linked to organic frozen berries
About Hepatitis A and Vaccination

Meningococcal Disease
About Meningococcal Disease and Vaccination
Meningococcal Meningitis Health Advisory

Measles
If you are travelling to Europe you may be at risk for being exposed to measles.  Talk to your doctor to make sure you are up-to-date on your MMR (measles, mumps, rubella) vaccine before you travel.
About Measles and Vaccination

Influenza (Flu)
The Centers for Disease Control and Prevention (CDC) recommends that everyone 6 months of age and older get their yearly flu vaccine. To find a vaccination clinic near you, visit www.flu.gov
CDPH Influenza (flu) Information