Current flu virus may mutate and evade vaccine, CDC warns
The Centers for Disease Control and Prevention (CDC) issued a health warning about the current flu vaccine.
The Centers for Disease Control and Prevention (CDC) issued a health warning about the current flu vaccine.
Those same experts report the flu vaccine is safe for patients who have not had a stem cell transplant.
People with weakened immune systems due to cancer are at increased risk of severe complications from the influenza virus, according to experts.