Vaccination reduced the risk of death by two-thirds for children with no other health problems.  

The vaccine shows better-than-expected effectiveness against the most common and most virulent strain of influenza in children under 9 years old.

A gene-expression signature correlates with a person’s likelihood of experiencing adverse events after receiving a seasonal flu vaccine, scientists show. 

The status of a person’s immune system can predict when a seasonal flu vaccination will not provide sufficient protection, according to a study. 

Adding an adjuvant to stimulate both innate and adaptive immunity, researchers boost the effectiveness of an influenza A vaccine in mice.

About half of the H3N2 influenza samples tested in the United States encode altered antigens from the strain used to produce this year’s vaccine.

Gut microbes enhance response to the seasonal flu shot in mice.

A new study sheds light on why those who received GlaxoSmithKline’s flu vaccine were at an increased risk of developing the sleep disorder.

The US Food and Drug Administration approves the first flu vaccine made from recombinant proteins rather than a weakened virus.