What side effects are associated with the nasal-spray flu vaccine LAIV (NASOVAC) ?
Some children & young adults between 3-17 years of age and adults have reported experiencing mild reactions after receiving nasal spray flu vaccine such as sneezing, runny nose, nasal congestion or cough, chills, tiredness/weakness, sore throat and headache. These side effects are mild and short-lasting (1 to 2 days), especially when compared to symptoms of influenza infection. They usually require no medication. There are no serious side effects.