The people who want to injection an Influenza vaccine to protect the flu has increased recently this year too. Is it effective to protect the flu? Many
correct, I have seen many patients who had the vaccine. It is said the effectiveness is about 50-60%. About half of you can escape from the flu if you have the vaccine. It is not sufficient protection for flu, but to have the vaccine is better for you because you can decrease a probability of catching the flu.